Becker Avionics TG660 Aircraft radio User Manual Transceiver Family 620X

Becker Avionics, Inc. Aircraft radio Transceiver Family 620X

Manual_Family

   Becker Avionics GmbH • Baden-Airpark B108 • 77836 Rheinmünster • Germany   +49 (0) 7229 / 305-0 • Fax +49 (0) 7229 / 305-217  http://www.becker-avionics.com • E-mail: info@becker-avionics.com VHF-Transceiver Family AR620X-(X1X) AR620X-(X2X) RT6201-(X10) RT6201-(X20) RCU6201-(X12)   Software Versions:  from Software Version SCI1050S305 Version 4.06 SCI1051S305 Version 2.06                                   Installation and Operation  Manual DV14307.03 Issue 04  March 2016 Article-No. 0638.404-071
General Description   Introduction  2  Transceiver Family 620X DV14307.03 Issue 04 March 2016 Preface  Dear Customer,  Thank you for purchasing Becker Avionics products.  We are pleased that you have chosen our product and we are confident that it will meet your expectations. For development of our product, the guidelines for highest quality and reliability have been borne in mind, supplemented by selection of high quality material, responsible production and testing in accordance to the ISO 9001 and DIN EN 9100 standards. Our competent customer support department will respond on any technical question you may have. Please do not hesitate to contact us at any time.       VHF-Transceiver Family   AR6201 (Single Block Transceiver)    RCU6201 (Remote Control Unit)  AR6203 (Single Block Transceiver)    RT6201 (Remote Transceiver)
  General Description Introduction  DV14307.03 Issue 04 March 2016 Transceiver Family 620X  3 List of Effective Pages and Changes Only technical relevant modifications are described in this table.  Document:  DV14307.03 / issue 04 Article Number 0638.404-071 Cover Page    03/2016 Introduction    03/2016 Chapter 1 – 4    03/2016 Issue Page No.: Section / Chapter Description 04 1...116 all Changed: Editorial adjustments.   -- 1.7.9.1 Added: Description "FCC Approval"  --      --      --      --      --      --      --      --      --      --      --      --      --      --      --      --       © 2016 by Becker Avionics GmbH / all rights reserved
General Description   Introduction  4  Transceiver Family 620X DV14307.03 Issue 04 March 2016 Table of Contents 1. General Description ..................................................................................................................... 11 1.1. Introduction .................................................................................................................................. 12 1.2. Purpose of Equipment ................................................................................................................. 13 1.3. General Notes ............................................................................................................................. 13 1.4. Variants Overview ....................................................................................................................... 14 1.4.1. Software Status ................................................................................................................. 16 1.5. Short Description ......................................................................................................................... 16 1.5.1. AR6201 Single Block Transceiver..................................................................................... 16 1.5.2. RT6201 Remote Transceiver ............................................................................................ 17 1.5.3. RCU6201 Remote Control Unit ......................................................................................... 17 1.5.4. AR6203 Single Block Transceiver..................................................................................... 18 1.6. Features Overview ...................................................................................................................... 18 1.7. Technical Data ............................................................................................................................. 21 1.7.1. Receiver Data for AR620X and RT6201 ........................................................................... 22 1.7.2. Transmitter Data AR620X and RT6201 ............................................................................ 23 1.7.3. Dimensions & Weight ........................................................................................................ 24 1.7.4. Emergency Operation ....................................................................................................... 24 1.7.5. Environmental Qualification AR620X and RCU6201 ........................................................ 24 1.7.6. Environmental Qualification RT6201 ................................................................................ 26 1.7.7. Software ............................................................................................................................ 27 1.7.8. Complex Hardware ........................................................................................................... 27 1.7.9. Approvals .......................................................................................................................... 28 1.7.9.1. FCC Approval ........................................................................................................ 29 1.8. Order Code .................................................................................................................................. 30 1.8.1. 620X .................................................................................................................................. 30 1.8.2. Accessories ....................................................................................................................... 30 2. Installation .................................................................................................................................... 33 2.1. Limitations ................................................................................................................................... 33 2.2. Packaging, Transport, Storage .................................................................................................... 33 2.3. Device Assignment ...................................................................................................................... 34 2.3.1. Scope of Delivery .............................................................................................................. 34 2.3.2. Additional Required Equipment......................................................................................... 34 2.3.3. Type Plate ......................................................................................................................... 35 2.3.4. Software/Firmware Status – Functionality ........................................................................ 35 2.4. Mechanical Installation ................................................................................................................ 36 2.4.1. AR6201 and RCU6201 Installation (Back Panel Mounting) ............................................. 36 2.4.2. AR6203 Installation ........................................................................................................... 39 2.4.3. RT6201 Installation ........................................................................................................... 41 2.5. Electrical Interface ....................................................................................................................... 44 2.5.1. Connector and Pin Assignment (AR620X and RT6201) ................................................... 44 2.5.1.1. Inputs / Outputs ...................................................................................................... 47 2.5.2. Connector and Pin Assignment (RCU6201) ..................................................................... 51 2.6. Installation and Configuration ...................................................................................................... 52 2.7. Antenna Installation ..................................................................................................................... 53 2.8. Configuration Setup ..................................................................................................................... 53 2.8.1. Start Configuration Setup .................................................................................................. 54 2.8.2. Navigate between Pages .................................................................................................. 54 2.8.3. Store Setup Data ............................................................................................................... 54 2.8.4. Leave Configuration Setup ................................................................................................ 54 2.8.5. Adjust Volume Settings (VU Meter) .................................................................................. 54 2.8.6. Configuration Setup Pages - Description .......................................................................... 55 2.9. Factory Default Settings .............................................................................................................. 68 2.10. Wiring Diagrams and Settings ..................................................................................................... 70 2.10.1. Single Seat Glider ............................................................................................................. 70 2.10.1.1. Configuration Setup ............................................................................................... 70 2.10.1.2. Wiring Diagrams Single Seat Glider ...................................................................... 71 2.10.1.3. Wiring Diagrams Single Seat Glider 5-pol DIN Jack ............................................. 72 2.10.2. Twin Seat Motor Glider ..................................................................................................... 73 2.10.2.1. Configuration Setup ............................................................................................... 73
  General Description Introduction  DV14307.03 Issue 04 March 2016 Transceiver Family 620X  5 2.10.2.2. Wiring Diagram Twin Seat Motor Glider ................................................................ 74 2.10.3. General Aviation (GA) Aircraft .......................................................................................... 75 2.10.3.1. Configuration Setup (using Standard Microphones) ............................................. 75 2.10.3.2. Wiring Diagram General Aviation GA Using Standard Microphones .................... 76 2.10.4. Individual Dual Headset Configuration (two IC Circuit) .................................................... 77 2.10.4.1. Configuration Setup ............................................................................................... 77 2.10.4.2. Wiring Diagram Individual Dual Headset Configuration - two IC Circuit ............... 78 2.10.5. Twin Seat with AR620X Tandem Configuration ............................................................... 79 2.10.5.1. Configuration Setup ............................................................................................... 79 2.10.5.2. Wiring Diagram Twin Seat with AR620X Tandem Configuration .......................... 80 2.10.6. Aircraft with four Seats (no TANDEM) .............................................................................. 81 2.10.6.1. Configuration Setup ............................................................................................... 81 2.10.6.2. Wiring Diagram Aircraft with four Seats - no TANDEM ......................................... 82 2.10.7. Installation with RT6201 and RCU6201 ............................................................................ 83 2.10.7.1. Wiring Diagram with RT6201 and RCU6201......................................................... 83 2.10.8. Aircraft with Intercom System ........................................................................................... 84 2.10.8.1. Configuration Setup ............................................................................................... 84 2.10.8.2. Wiring Diagram Aircraft with Intercom System unbalanced .................................. 85 2.10.8.3. Wiring Diagram Aircraft with Intercom System Balanced ...................................... 86 2.10.9. Twin Seat with RT6201 Tandem Configuration ................................................................ 87 2.10.9.1. Configuration Setup ............................................................................................... 87 2.10.9.2. Wiring Diagram Twin Seat with RT6201 Tandem Configuration ........................... 88 2.11. Predesigned Cable Harness ....................................................................................................... 89 2.11.1. 1K065 for General Aviation ............................................................................................... 89 2.11.2. 1K062 (Open Cable Ends) ................................................................................................ 89 2.12. Retrofitting AR4201 with AR6201 ............................................................................................... 89 2.12.1. Pin Compatibility AR4201 - AR6201 ................................................................................. 90 2.12.2. Dynamic Microphone Input ............................................................................................... 91 2.12.3. Temperature Sensor ......................................................................................................... 91 2.12.4. RS232 Interface ................................................................................................................ 91 2.12.5. AFCU/AGC/AFWB ............................................................................................................ 92 2.12.6. CPIN (if Installed) .............................................................................................................. 92 2.12.7. +13.75 V Switched (AR4201) - PWR_EVAL (AR6201) .................................................... 92 2.13. Post Installation Tests ................................................................................................................. 92 2.13.1. Mechanical Installation and Wiring Check ........................................................................ 92 2.13.2. Power Supply .................................................................................................................... 92 2.13.3. Receiver / Transmitter Operation ...................................................................................... 92 2.13.4. Antenna Check ................................................................................................................. 92 2.13.5. Interference Check ............................................................................................................ 92 2.13.6. Flight Test Check .............................................................................................................. 94 2.14. Trouble Shooting ......................................................................................................................... 95 2.15. Continued Airworthiness ............................................................................................................. 96 3. Operating Instructions ................................................................................................................ 97 3.1. Device Description ...................................................................................................................... 97 3.1.1. Device Assignment ........................................................................................................... 97 3.1.2. Type Plate ......................................................................................................................... 97 3.2. Controls and Indicators ............................................................................................................... 99 3.3. Start-Up ..................................................................................................................................... 100 3.4. Receive and Transmit Mode ..................................................................................................... 100 3.4.1. Receive Mode ................................................................................................................. 100 3.4.2. Transmit Mode ................................................................................................................ 100 3.5. Frequency Selection Modes...................................................................................................... 101 3.5.1. Standard Mode ............................................................................................................... 101 3.5.2. Direct Tune Mode ........................................................................................................... 102 3.5.3. Channel Mode ................................................................................................................. 104 3.5.3.1. Select Channels .................................................................................................. 104 3.5.4. Frequency Storage Functions ......................................................................................... 105 3.5.4.1. Store .................................................................................................................... 105 3.5.5. Automatic Storage Function ........................................................................................... 106 3.5.5.1. Delete data: ......................................................................................................... 106 3.5.6. Scan Mode ...................................................................................................................... 107
General Description   Introduction  6  Transceiver Family 620X DV14307.03 Issue 04 March 2016 3.6. SQUELCH ................................................................................................................................. 108 3.7. RX Field Strength Indication ...................................................................................................... 108 3.8. Channel Spacing Mode ............................................................................................................. 108 3.9. Auxiliary Audio Input .................................................................................................................. 109 3.10. Intercom Operation .................................................................................................................... 109 3.11. VOX & Speaker Operation ........................................................................................................ 110 3.12. Menus ........................................................................................................................................ 110 3.12.1. Intercom Menu ................................................................................................................ 110 3.12.2. User Menu ....................................................................................................................... 112 3.13. Warning and Failure Indications ................................................................................................ 113 4. Index ............................................................................................................................................ 116
  General Description Introduction  DV14307.03 Issue 04 March 2016 Transceiver Family 620X  7 List of Abbreviations  List of Abbreviations AC Alternating Current AF Audio Frequency AR Airborne Radio ATT Attenuation AUX Auxiliary AWG American Wire Gauge BNC Bayonet Neill Concelman CBIT Continuous Built-In Test CFG Configuration CH Channel CM Chassis Core Module COM Communication DC Direct Current EASA European Aviation Safety Agency EMI Electro Magnetic Interference ETSO European Transmission System Operators EUROCAE European Organisation for Civil Aviation Equipment  FAA Federal Aviation Administration GND Ground (Aircraft Ground) GPS Global Positioning System HIRF High Intensity Radiated Fields HMI Human Machinery Interface I&O Installation & Operation IC Intercom LCD Liquid Crystal Display M&R Maintenance & Repair MFD Multi-Function Display N/A Not Applicable NAV Navigation PBIT Power-On Built In Test PTT Push To Talk PWR Power RCU Remote Control Unit RSSI Received Signal Strength Indication RT Remote Transceiver RX Receive SPKR Speaker (Loudspeaker) SQL Squelch SRC Source SW Software TSO Technical Standard Order
General Description   Introduction  8  Transceiver Family 620X DV14307.03 Issue 04 March 2016 List of Abbreviations TX Transmit VDC Voltage Direct Current VHF Very High Frequency  VOX Voice Operated IC Threshold VSWR Voltage Standing Wave Ratio VU Volume Unit   Units   Units V Volt mV Millivolt A Ampere mA Milliampere W Watt mW Milliwatt kHz Kilohertz MHz Megahertz s Second dBm Power ratio in Decibel dB Decibel Ohm (Ω) Resistor kg Kilogram °C Degree Celsius mm Millimetre cm Centimetre  General Safety Definitions   Indicates a hazardous situation which, if not avoided, will result in death or serious injury.    Indicates a hazardous situation which, if not avoided, could result in death or serious injury.    Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.    Is used to address practices not related to physical injury.    Safety instructions (or equivalent) signs indicate specific safety-related instructions or procedures.
  General Description Introduction  DV14307.03 Issue 04 March 2016 Transceiver Family 620X  9 Disposal   The packaging material is inflammable, if it is disposed of improperly by burning, lethal fumes may develop.  This product contains materials that fall under the special disposal regulation, which corresponds to the EC directive for dangerous disposal material. We recommend disposing of the respective materials in accordance with the respectively valid environmental laws. The following table states the materials suitable for recycling and the materials which have to be disposed of separately.  Material Suitable for recycling Disposal Metal yes no Plastics yes no Circuit boards no yes  Dispose of the circuit boards: • Disposal via a technical waste dump which is allowed to take on e.g. electrolytic aluminium capacitors. Do under no circumstances dump the circuit boards with normal waste dump.  Warranty Conditions User Conversions and Changes are not permitted Any change made by the user excludes any liability on our part (excluding updates for the navigation data base). • The device must not be opened. • Do not make any modifications to the device, except for those described in the manual. • Make connections to the inputs, outputs and interfaces only in the manner described in the manual. • Fix the devices according to the mounting instructions.  We cannot provide any guarantee for other mounting methods.  Conditions of Utilization General introductory notes With this device you bought a product which was manufactured and tested before delivery with the utmost care. Please take your time to read the following notes which you ought to follow closely during installation and operation. Unless,  all claims under the warranty will become void and a reduced service life or even damages must be expected.   The user is responsible for protective covers and/or additional safety measures in order to prevent damages to persons and electric accidents.   Additional Conditions of Utilization Please refer to "Limitations", page 33.  Non Warranty Clause We checked the contents of this publication for compliance with the associated hard and software. We can, however, not exclude discrepancies and do therefore not accept any liability for the exact compliance. The information in this publication is regularly checked, necessary corrections will be part of the subsequent publications.
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  General Description Introduction  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 11 1. General Description In this chapter you can read about: 1.1. Introduction.................................................................................................................................. 12 1.2. Purpose of Equipment ................................................................................................................. 13 1.3. General Notes ............................................................................................................................. 13 1.4. Variants Overview ....................................................................................................................... 14 1.4.1. Software Status ................................................................................................................. 16 1.5. Short Description ......................................................................................................................... 16 1.5.1. AR6201 Single Block Transceiver .................................................................................... 16 1.5.2. RT6201 Remote Transceiver ............................................................................................ 17 1.5.3. RCU6201 Remote Control Unit ........................................................................................ 17 1.5.4. AR6203 Single Block Transceiver .................................................................................... 18 1.6. Features Overview ...................................................................................................................... 18 1.7. Technical Data ............................................................................................................................ 21 1.7.1. Receiver Data for AR620X and RT6201........................................................................... 22 1.7.2. Transmitter Data AR620X and RT6201 ............................................................................ 23 1.7.3. Dimensions & Weight........................................................................................................ 24 1.7.4. Emergency Operation ....................................................................................................... 24 1.7.5. Environmental Qualification AR620X and RCU6201 ........................................................ 24 1.7.6. Environmental Qualification RT6201 ................................................................................ 26 1.7.7. Software ............................................................................................................................ 27 1.7.8. Complex Hardware ........................................................................................................... 27 1.7.9. Approvals .......................................................................................................................... 28 1.7.9.1. FCC Approval ........................................................................................................ 29 1.8. Order Code.................................................................................................................................. 30 1.8.1. 620X .................................................................................................................................. 30 1.8.2. Accessories ....................................................................................................................... 30    This manual describes the installation and operation of the RCU-,  RT-,  AR6201 and  AR6203 VHF Transceiver Family equipment. The ID label on your device shows the part number for identification purposes.  Before starting operation of the unit(s) please read this manual carefully, with particular attention to the description referring to your device(s). This manual also contains several optional elements of the system (second controller for example), that may not be contained in your delivery package and in that case are not applicable.
General Description   Introduction  12 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.1. Introduction AR-,  RT-, RCU620X VHF Transceivers are a modern family of communication equipment that have comprehensive capabilities and significantly extend the typical aeronautical transceivers. Despite its small size and weight the devices include inter alia: • Sensitive receiver which meets the most recent requirements of ED-23C, including the ability to work in the offset-carrier (climax) operation in 25 kHz and 8.33 kHz channel spacing (class H2). • Receiver includes SCAN (dual watch) mode. This allows simultaneous monitoring of two different VHF frequency channels without interrupting communication on the active frequency. • High efficiency transmitter, which delivers more than 10 W modulated, or un-modulated, output power at 28 V supply voltage, or 6 W at 12 V.  Lower power consumption allows longer operation from battery. • Extended built-in intercom which can work as: o  4-way intercom with isolation mode – passengers could continue conversation or listening to music from MP3 player at the same time as pilots talk via intercom or communicate with the tower. o  2-way intercom for tandem operation – pilot and co-pilot work with separate controllers and can control their individual audio parameters, like volume or VOX. This mode is preferred especially for training due to full synchronization of LCD contents. • Non-volatile memory for storing: o 99 channels can be labelled manually for storage of VHF frequencies. o  9 recently selected VHF frequencies are automatically stored.   For  further descriptions we are using following  terms  for VHF transceivers, VHF remote transceiver and remote control unit, instead writing their complete model number. 620X in general for the device family. AR620X for: AR6201, AR6203 (Single Block Transceiver).  RT for: RT6201 (Remote Transceiver). RCU for: RCU6201 (Remote Control Unit).
  General Description Purpose of Equipment  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 13 The manuals “Maintenance and Repair” (M&R), “Installation and Operation (I&O) and "Operation Instructions" (OI) contain the following sections:   Section DV 14307.04 M&R DV 14307.03 I&O  OI  General X  X  N/A  Installation X  X  N/A  Operation X  X  X  Theory of Operation X  N/A N/A  Maintenance and Repair X  N/A N/A  Illustrated Parts List X  N/A N/A  Modification and Changes X  N/A N/A  Circuit Diagrams X  N/A N/A  Certifications  X  N/A N/A  Attachments  X  N/A N/A   1.2. Purpose of Equipment The  620X transceiver family enable voice communication between aircraft or between aircraft and ground using the very high frequency band between 118.000...136.9916 MHz respectively 136.9750 MHz with a selectable channel spacing of 25 kHz respectively 8.33 kHz. The wide scope of accessories also allows usage of the 620X VHF transceivers in ground-based applications. The  620X Family is dedicated to applications where low power consumption is required. They are capable to operate from standard 14 VDC and 28 VDC installations and from 12 VDC or 24 VDC batteries. Ultra low power consumption with extremely wide DC supply voltage range as well as compact and lightweight design allows application for gliders and leisure aircraft up to 2000 kg and balloons. Built-in 4-seat configurable intercom, transmitter output power up to 10 W and option for connection of two controllers in tandem configurations extends the flexibility of the 620X Family. The 620X transceivers also provide additional options such as: • Intercom functionality for voice communication between aircraft crew and passengers • Squelch functionality that automatically mutes receiver audio signal until clear signal is received to avoid unwanted audio noise • Scan functionality for simultaneous monitoring of two VHF channels (receive mode) • AUX audio input for connection of additional audio devices like navigation receiver, warning-tone generator, or MP3 music player. • VHF channel database for easy access to predefined frequency channels • Tandem functionality for synchronized operation of two controllers  1.3. General Notes The word "frequency"  also used in the sense of "channel name", as defined in EUROCAE, document ED-23B chapter 1.3.2. In this document the word "memory channel"  or  "channel"  means a memory place identified by a channel number, where a frequency may be stored for later use.
General Description   Variants Overview  14 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.4. Variants Overview Within the part number, the meaning of "- (XXX)" is:   A R  6 20  X  - (X   X   X)                         Identifier                  2 - Blue White Backlight                                                 Family Number                  0 – Classic Design *1) 1 – New Design; 10 W *2)                   2 – New Design; 6 W *3)                    1 – Square unit 2¼ inch                  0 – Standard 3 – 160 mm                  1 – 25 kHz only  Note: *1) TX = 6 W; 2-seat IC  *2) TX = 10 W; 4 seat IC; Tandem capability; lower mounting depth. *3) TX = 6 W; 4 seat IC; Tandem capability; lower mounting depth.    R CU  6 20  X  - (X   X   X)                         Identifier                  2 - Blue White Backlight                                                 Family Number                  0 – Classic Design  1 – New Design *4)                                       1 – Square unit 2¼ inch                  0 – Standard                   1 – 25 kHz only  *4) lower mounting depth.
  General Description Variants Overview  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 15   R T  6 20  X  - (X   X   X)                         Identifier                  0 - Standard                                                 Family Number                  0 – Classic Design *5) 1 – New Design; 10 W *6)                   2 – New Design; 6 W *7)                    1 – Square unit 2¼ inch                  0 – Standard                   1 – 25 kHz only  Note: *5) TX = 6 W; 2-seat IC  *6) TX = 10 W; 4 seat IC; Tandem capability; lower mounting depth. *7) TX = 6 W; 4 seat IC; Tandem capability; lower mounting depth.     (0XX) indicates: 8.33/25 kHz channel spacing capability  (1XX) indicates: only 25 kHz channel spacing capability  (X1X) indicates: transmit power ≥ 6 W @ 14 V and 10 W @ 28 V  (X2X) indicates: transmit power  ≥ 6 W @ 14 V and 6 W @ 28 V  (XX2) indicates: white illumination colour on a black panel  AR6201 Single Block Transceiver  Part Number Article No 8.33 kHz Mode 25 kHz Mode Transmit PWR AR6201-(012) 0631.418-910 yes yes ≥ 6 W @ 14 V /  10 W @ 28 V AR6201-(022) 0636.339-910 yes yes ≥ 6 W @ 14 V /  6 W @ 28 V AR6201-(112) 0631.434-910 no yes ≥ 6 W @ 14 V /  10 W @ 28 V AR6201-(122) 0636.355-910 no yes ≥ 6 W @ 14 V /  6 W @ 28 V   RT6201 Remote Transceiver  Part Number Article No 8.33 kHz Mode 25 kHz Mode Transmit PWR RT6201-(010) 0631.442-910 yes yes ≥ 6 W @ 14 V /  10 W @ 28 V RT6201-(020) 0636.312-910 yes yes ≥ 6 W @ 14 V /  6 W @ 28 V RT6201–(110) 0638.609-910 no yes ≥ 6 W @ 14 V /  10 W @ 28 V RT6201-(120) 0638.617-910 no yes ≥ 6 W @ 14 V /  6 W @ 28 V
General Description   Short Description  16 Transceiver Family 620X DV14307.03 Issue 04 March 2016 RCU6201 Remote Control Unit  Part Number Article No 8.33 kHz Mode 25 kHz Mode Transmit PWR RCU6201-(012) 0631.469-910 yes yes N/A RCU6201-(112) 0631.485-910 no yes N/A   AR6203 Single Block Transceiver  Part Number Article No 8.33 kHz Mode 25 kHz Mode Transmit PWR AR6203-(012) 0630.993-910 yes yes ≥ 6 W @ 14 V /  10 W @ 28 V AR6203-(022) 0636.371-910 yes yes ≥ 6 W @ 14 V /  6 W @ 28 V AR6203-(112) 0631.566-910 no yes ≥ 6 W @ 14 V /  10 W @ 28 V AR6203-(122) 0636.398-910 no yes ≥ 6 W @ 14 V /  6 W @ 28 V   1.4.1. Software Status Description see "Software/Firmware Status – Functionality", page 35.  1.5. Short Description For a "Side by Side" seat configuration, the following combinations apply: • AR6201 or AR6203 Single Block Transceiver. • RT6201 Remote Transceiver with Remote Control Unit (RCU6201). For a "Tandem" seat configuration, the following combinations apply: • AR6201 or AR6203 Single Block Transceiver with additional Remote Control Unit (RCU6201). • RT6201 Remote Transceiver with Remote Control Unit  (RCU6201)  and additional second Remote Control Unit (RCU6201). In tandem configuration two controllers and one transceiver are connected. Tandem configuration is useful for training purposes where pilot and student have their own controller with full-synchronized views or as separate controllers for pilot and co-pilot.  1.5.1. AR6201 Single Block Transceiver The AR6201 is a compact and lightweight unit designed for operation in a cockpit environment for both general aviation aircraft and helicopters. All controls and indicators are located on the front panel.  The equipment connectors and the antenna socket are located at the rear of the unit.  Installation via four screws (rear panel installation). The dimensions correspond to the standard instrument diameter of 58 mm (2¼ inch).  Figure 1-1: AR6201 Single Block Transceiver
  General Description Short Description  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 17 1.5.2. RT6201 Remote Transceiver The RT6201 is a compact and lightweight single block unit in rectangular shape that contains a VHF transceiver. The RT6201 requires a dedicated Remote Control Unit RCU6201 or a third party controller, e.g. a Multi Function Display (MFD), by means of the Becker proprietary protocol. Installation via four screws using the attached mounting equipment. The dimensions correspond to the standard instrument diameter of 58 mm (2¼ inch). To meet the conditions for certification use the mounting method with mounting kit MK6201-(010).   Figure 1-2: RT6201 Single Block Remote Transceiver  1.5.3. RCU6201 Remote Control Unit The RCU6201 is a compact and lightweight unit. All controls and indicators are located on the front panel. The equipment connectors are located at the rear of the unit.  Installation  via four screws (rear panel installation). The dimensions correspond to the standard instrument diameter of 58 mm (2¼ inch).   Figure 1-3: RCU6201 Remote Control Unit
General Description   Features Overview  18 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.5.4. AR6203 Single Block Transceiver The AR6203 is a single block unit, designed for operation in a cockpit environment for both, general aviation aircraft and helicopters. All controls and indicators are located on the front panel.  The equipment connectors and the antenna socket are located at the rear of the unit. The AR6203 should be mounted with the designated mounting kit MK6403-1 (see  "AR6203 Installation", page 39). Holes on both sides of the mounting kit frame enable the device been mounted in the aircraft cockpit. The dimensions correspond to the state-of-the-art 160 mm (6.3") panel mounted design.   Figure 1-4: AR6203 Single Block Transceiver  1.6. Features Overview Frequency Indication A liquid crystal display (LCD) provides frequency indication. The required operating frequency is selectable by means of a "ROTARY ENCODER". The relation between the real operating frequency and the displayed frequency complies with the standards (ED-23B, chapter 1.3.2). For an overview, refer to the table below.  Operating Frequency MHz Channel Spacing  kHz Displayed Frequency 8.33 + 25 kHz  mixed Mode 25 kHz Mode 118.0000 25 118.000 118.00 118.0000 8.33 118.005 N/A 118.0083 8.33 118.010 N/A 118.0166 8.33 118.015 N/A 118.0250 25 118.025 118.02 etc. etc. etc. etc. 136.9750 25 136.975 136.97 136.9750 8.33 136.980 N/A 136.9833 8.33 136.985 N/A 136.9916 8.33 136.990 N/A
  General Description Features Overview  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 19 Audio Outputs The 620X transceiver includes four fully configurable outputs: • Headphone 1 output, rated output power is 300 mW into 75 Ω.  • Headphone 2 output, rated output power is 200 mW into 75 Ω. • Speaker output, rated output power is 4 W into 4 Ω. • LINE-OUT output intended for ground station use only  Note: Headphone 2 and speaker output cannot be active at the same time  Mike Inputs The VHF transceiver has an input for dynamic microphone (DYN_MIKE) and an input for standard microphone (STD_MIKE).  The 620X transceiver provides four microphone inputs: • Standard microphone input 1 (STD_MIKE1) • Standard microphone input 2 (STD_MIKE2) • Standard microphone input 3 (STD_MIKE3) • Dynamic microphone input (DYN_MIKE) Each input is able to operate with one single microphone or with two microphones of the same type connected in parallel.  AF Auxiliary Input The AF auxiliary provides the interface to connect an external audio source (e.g. NAV, music-player) to the transceiver. Interconnection of multiple external audio sources on this particular port requires additional external decupling/isolation resistors. The external audio is audible only when the transceiver is in receiving mode. The individual audio volume is set directly at the particular external equipment.  Side Tone The side tone is available on the headphone output during transmission. The side tone volume automatically adapts to the intercom volume setting.  Squelch Operation When enabled the squelch (muting) circuit suppresses weak signals. There are two kinds of squelch methods implemented, carrier-  and noise-squelch. Carrier-squelch depends on the received signal strength and is adjustable in configuration setup; the noise-squelch depends on the detected noise level and is adjustable in the user menu.  Memory Channels The memory function allows storage of up to 99+9 frequencies. A user defined text label is assignable for each stored frequency. Additionally the last recently used 9 (active) frequencies are stored automatically as "LAST" channels.   Intercom Operation The built-in intercom circuit provides internal communication via between pilots and passengers via connected headsets. The 620X system has two intercom circuits, "Front row" and "Back row". You can connect a maximum of four headsets, e.g. pilot & co-pilot to first circuit and two passengers to second circuit).  Scan Mode Scan mode provides a dual watch function. The device is capable of monitoring frequencies on two different channels, active & preset simultaneously. The signal of the active frequency will always be audible, since it will have priority at all times.
General Description   Features Overview  20 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Tandem Operation Tandem mode enables operation of two controllers simultaneously. The controllers synchronizing each other in such a way, that both display the same information.  Illumination The illumination of LCD and push buttons can be controlled either directly from the front panel via the user menu or externally via the dimming input lines. If external dimming selected, the illumination curve (brightness to voltage relation) is adjustable in configuration setup.  LOW BATT Indication The transceiver monitors power supply voltage. If the supply voltage drops below the adjustable threshold, the display indicates the message "LOW BATT". If the power supply voltage drops further, emergency operation mode activates.  Emergency Operation If the power supply voltage drops below 10.25 V, the transceiver continues operation with degraded performance. If power supply further drops below 9.0 Volt, the unit automatically switches off.  Built-in Tests PBIT and CBIT After power-up, the unit performs a self-test (power-up built-in test / PBIT). During PBIT, the transceiver displays "WAIT" and additionally the corresponding software versions of both, the control head (CH) and core module (CM) become visible. If faults are detected during PBIT, the error message "FAILURE, press any key"  is displayed. If no faults are detected the transceiver automatically activates the last active mode set at last power-off.  During normal operation, a continuous built-in test (CBIT) permanently verifies the correct operation of the unit. If detecting a problem during CBIT an error message become displayed.  Configuration Setup Configuration of parameters such as mike sensitivity, mike type selection, speaker enable/disable and several other parameters, via the configuration setup provided.  Service Mode The service mode is a special configuration mode accessible via RS422 interface with a proprietary serial data communication protocol. This mode is for use by authorized maintenance organizations during aircraft service on ground only.
  General Description Technical Data  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 21 1.7. Technical Data  620X Variants Nominal supply voltage range 11.0…30.3 V all variants Extended supply voltage range 10.25…32.2 V all variants Emergency operation 9.0...10.25 V all variants Dimming control 0…14 V or 0…28 V all variants Frequency range 118.000...136.975 MHz (-1XX variant) 118.000...136.9916 MHz (-0XX variant) Channel spacing 25 kHz (-1XX variant) 8.33/25 kHz (-0XX variant) Number of channels 760 (-1XX variant) 2280 +760 (-0XX variant) Storage Temperature range -55...+85 °C all variants Operating Temperature range -20...+55 °C  AR620X-(XXX), RCU6201-(XXX) -40...+55 °C RT6201-(XXX) short-time +70 °C all variants Operating Altitude 35 000 ft  Vibration Category S (Curve M) + Category U (Curve G)   Typical Power Consumption    AR620X (X2X)  6 W AR620X (X1X) 10 W RT6201 (X2X) 6 W RT6201 (X1X) 10 W RCU6201 (XXX)   Power "off" @ 12 VDC ≤ 0.10 mA ≤ 0.10 mA ≤ 0.10 mA ≤ 0.10 mA ≤ 0.10 mA Power "off" @ 27.5 VDC ≤ 0.10 mA ≤ 0.10 mA ≤ 0.10 mA ≤ 0.10 mA ≤ 0.10 mA Reception stand-by mode @ 13.75 VDC,  panel backlight off ≤ 140 mA ≤ 140 mA ≤ 120 mA ≤ 120 mA ≤ 20 mA Reception stand-by mode @ 27.5 VDC,  panel backlight off ≤ 80 mA ≤ 80 mA ≤ 80 mA ≤ 80 mA ≤ 20 mA Transmit mode (in %) @ 13.75 VDC, VSWR=1:1 1.8 A at 70% 1.5 A at 0% - 1.8 A at 70% 1.5 A at 0% -  ≤ 0 mA Transmit mode  @ 27.5 VDC, VSWR=1:1 1.2 A at 70% 1.0 A at 0% 1.4 A at 70% 1.0 A at 0% 1.2 A at 70% 1.0 A at 0% 1.4 A at 70% 1.0 A at 0% ≤ 20 mA Absolute maximum current  @ 13.75 VDC, VSWR=3:1 ≤ 3 A  -  ≤ 2,9 A  -  ≤ 20 mA Absolute maximum current  @ 27.5 VDC, VSWR=3:1 ≤ 2 A  ≤ 2.5 A  ≤ 1.9 A  ≤ 2.4 A  ≤ 20 mA
General Description   Technical Data  22 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.7.1. Receiver Data for AR620X and RT6201  Technical characteristics AR620X, RT6201 Sensitivity ≤ -101 dBm for a (S+N)/N ratio of 6 dB (nominal) ≤ -93 dBm for a (S+N)/N ratio of 6 dB (qualified under environmental conditions) Effective bandwidth (8.33 kHz channel spacing) ≥ ±2.78 kHz at the 6 dB points ≤ ±7.37 kHz at the 60 dB points Effective bandwidth (25 kHz channel spacing) ≥ ±8 kHz at the 6 dB points ≤ ±22 kHz at the 60 dB points Squelch level adjustable AGC characteristic ≤ 6 dB in range -93 dBm...0 Distortion ≤ 15%  ≤ 15% at 70% of rated output power Audio frequency response (8.33 kHz channel spacing) ≤ 6 dB 350...2500 Hz ≥ 35 dB at 4000 Hz Audio Noise ≤ 6 dB 300...3400 Hz ≥ 18 dB at 4000 Hz Rated output power for speaker operation ≥ 4 W into 4 Ω Rated output power for headphone 1 ≥ 300 mW into 75 Ω ≥ 100 mW into 600 Ω Rated output power for headphone 2 ≥ 200 mW into 75 Ω ≥ 100 mW into 600 Ω Audio auxiliary input 50 mV...8 V (adjustable) across 600 Ω Offset-carrier operation YES (25/8.33 kHz)
  General Description Technical Data  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 23 1.7.2. Transmitter Data AR620X and RT6201  Technical characteristics AR620X, RT6201 Output power into 50 Ω (with and without modulation) ≥ 6 W for AR620X-(X2X) and RT6201-(X2X) ≥ 10 W for AR620X-(X1X) and RT6201-(X1X) Frequency tolerance ≤ ±5 ppm Duty cycle 120 s (TX): 480 s (RX) Type of modulation A3E Modulation capability ≥ 70% Distortion ≤ 15% Audio frequency response (8.33 kHz channel spacing) ≤ 6 dB, 350...2500 Hz Audio frequency response (25 kHz channel spacing) ≤ 6 dB, 300...2500 Hz Dynamic microphone 1…20 mV compressor starting point, adjustable (with compressor) Input balanced, 200 Ω  Input range up to 20 dB above compressor starting point. Standard microphone(s) 10…1000 mV compressor starting point, adjustable (with compressor) Input unbalanced, 150 Ω Input range up to 20 dB above compressor starting point. FM deviation with modulation ≤ 3 kHz Sidetone adjustable PTT stuck detection of transmit mode 120 s (Factory configurable 30…120 s)
General Description   Technical Data  24 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.7.3. Dimensions & Weight   AR6201-(XXX) AR6203-(XXX) RCU6201-(XXX) RT6201-(XXX) Front panel (W x H) 61 x 61 mm (2.4 x 2.4 inch) 158.8 x 41.2 mm (6.25 x 1.62 inch) 61 x 61 mm (2.4 x 2.4 inch) 61 x 61 mm (2.4 x 2.4 inch) Depth of unit 205.7 mm  (8.98 inch) 224.4 mm (8.83 inch) 65.9 mm  (2.59 inch) 188 mm (7.4 inch) Mounting depth 184.8 mm (7.28 inch) 224.4 mm (8.83 inch) 39.3 mm (1.55 inch) 188 mm (7.4 inch) Mounting Back panel standard  Ø58 mm (2¼ inch) Mounting kit MK6403-1 panel mount  160 mm (6.3 inch)  Back panel standard  Ø58 mm (2¼ inch) Mounting kit MK6201-(010) or directly on avionic bay* Material AlMg/Plastic AlMg/Plastic AlMg/Plastic AlMg Surface treatment Control-head coated with black matt paint   Weight 675 g (1.488 lbs) 800 g (1.763 lbs) 200 g (0.44 lbs) 600 g (1.32 lbs) Note: *Use the mounting method with mounting kit to meet the conditions for certification.    1.7.4. Emergency Operation   For power-supply voltages below 10.25 V, the speaker output of the transceiver will automatically switch "OFF" without further indication.  If the device enters emergency operation, the speaker is switched "OFF"  due to degraded performance. Depending on settings in configuration setup  "LOW BATT"  may be indicated if supply voltage drops below a predefined threshold to indicate to the user, that he should connect his headset as the speaker may be switched "OFF" soon). In this case, a headset is required to continue operation of the transceiver. This data is applicable for AR620X and RCU6201.  Technical characteristics  Panel & Display Backlight switched off  TX Output Power ≥ 2 W into 50 Ω (with modulation) TX Modulation Depth ≥ 50% RX Sensitivity ≤ -93 dBm for a (S+N)/N ratio of 6 dB   1.7.5. Environmental Qualification AR620X and RCU6201 Under environmental test, condition in accordance with the procedures set forth in EUROCAE/RTCA Document ED-14F/DO-160F following performance has been demonstrated.  Condition Section Cat. Description Temperature and Altitude 4.0 C4  Ground Survival Low Temperature 4.5.1 C4 -55 °C Short-Time Operating Low Temperature -20 °C Low Operating Temperature -20 °C
  General Description Technical Data  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 25 Condition Section Cat. Description High Ground Survival Temperature 4.5.2 +85 °C High Short-Time Operating Temp. +70 °C High Operating Temp. +55 °C In-flight Loss of Cooling 4.5.5 - No forced cooling required  Altitude 4.6.1 C4 35000 ft Decompression 4.6.2 N/A Overpressure 4.6.3 N/A Temperature Variation 5.0 B 5 °C per minute Humidity 6.0 A Standard Shock and Crash Safety 7.0 B Fixed-wing and Helicopter, standard Vibration 8.0 S+U Test curve M+G Fixed-wing + Helicopter Explosion Proofness 9.0 - N/A Water Proofness 10.0 Y - Fluids Susceptibility 11.0 - N/A Sand and Dust 12.0 - N/A Fungus Resistance 13.0 - N/A Salt Spray 14.0 - N/A Magnetic Effect 15.0 Z 1 degree deflection at 0.3 m Power Input 16.0  B DC installations with battery of significant capacity Voltage Spike 17.0  A High degree of protections against voltage spikes Audio Freq. Conducted Susceptibility 18.0  B DC installations with battery of significant capacity Induced Signal Susceptibility 19.0 AC Primary power DC or AC, 400 Hz Radio Frequency Susceptibility 20.0 RW Interim high intensity radiated fields Emission of Radio Frequency Energy 21.0  B Equipment where interference should be controlled to a tolerable level Lightning Induced Transients Susceptibility 22.0 A1E3X Pin test waveform A, level 3 Cable bundle test waveform E, level 3 Lightning Direct Effects 23.0 - N/A Icing 24.0 - N/A Electrostatic Discharge 25.0  A Equipment operated in an aerospace environment Fire, Flammability 26.0 - N/A
General Description   Technical Data  26 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.7.6. Environmental Qualification RT6201 Under environmental test, condition in accordance with the procedures set forth in EUROCAE/RTCA Document ED-14F/DO-160F following performance has been demonstrated.  Condition Section Cat. Description Temperature and Altitude 4.0 C4  Ground Survival Low Temperature 4.5.1 C4 -55 °C Short-Time Operating Low Temperature -40 °C Low Operating Temperature -40 °C High Ground Survival Temperature 4.5.2 +85 °C High Short-Time Operating Temp. +70 °C High Operating Temp. +55 °C In-flight Loss of Cooling 4.5.5 - No forced cooling required  Altitude 4.6.1 C4 3500 ft Decompression 4.6.2 N/A Overpressure 4.6.3 N/A Temperature Variation 5.0 B 5 °C per minute Humidity 6.0 A Standard Shock and Crash Safety 7.0 B Fixed-wing and Helicopter, standard Vibration 8.0 S+U Test curve M+G fixed-wing + helicopter Explosion Proofness 9.0 - N/A Water Proofness 10.0 Y N/A Fluids Susceptibility 11.0 - N/A Sand and Dust 12.0 - N/A Fungus Resistance 13.0 - N/A Salt Spray 14.0 - N/A Magnetic Effect 15.0 Z 1 degree deflection at 0.3 m Power Input 16.0  B DC installations with battery of significant capacity Voltage Spike 17.0  A High degree of protections against voltage spikes Audio Freq. Conducted Susceptibility 18.0  B DC installations with battery of significant capacity Induced Signal Susceptibility 19.0 AC Primary power DC or AC, 400 Hz Radio Frequency Susceptibility 20.0 SW Interim High Intensity Radiated Fields Emission of Radio Frequency Energy 21.0  B Equipment where interference should be controlled to a tolerable level Lightning Induced Transients Susceptibility 22.0 A1E3X Pin test waveform A, level 3 Cable bundle test waveform E, level 3
  General Description Technical Data  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 27 Condition Section Cat. Description Lightning Direct Effects 23.0 - N/A Icing 24.0 - N/A Electrostatic Discharge 25.0  A Equipment operated in an aerospace environment Fire, Flammability 26.0 - N/A   1.7.7. Software The design and development processes used for AR6201 family software are in compliance with the rules given in EUROCAE/RTCA Document ED-12B/DO-178B; “Software Considerations in Airborne System and Equipment Certification”. Hereby ‘Design Assurance Level’ (DAL) “C” was followed and the complete software documentation is based on this level.  Nevertheless, Becker claimed for AR6201 family software in accordance with EUROCAE/RTCA Document ED-12B/DO-178B the Design Assurance Level D. Refer to AC 23.1309-1D and/or AC 23.1309-1E to see limitations for installations into aircrafts. The conditions and tests required for TSO approval of this article are minimum performance standards. It is the responsibility of those installing this article either on or within a specific type or class of aircraft to determine that the aircraft installation conditions are within the TSO standards. TSO articles must have separate approval for installation in an aircraft. The article may be installed only in compliance with 14 CFR part 43 or the applicable airworthiness requirements.  1.7.8. Complex Hardware The 620X devices do not contain complex hardware.
General Description   Technical Data  28 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.7.9. Approvals   Unauthorized changes or modifications to the 620X transceiver may void the compliance to the required regulatory agencies and authorization for continued equipment usage.   AR6201 Single Block Transceiver  Part Number Article Number EASA Approval TSO Conformity FCC Approval AR6201-(012) 0631.418-910 EASA.21O.1249 ETSO-2C37e Class: D, E ETSO-2C38e Class: 4, 6 TSO-C169a  Class: D, E, 4, 6 B54AR6201 AR6201-(112) 0631.434-910 EASA.21O.1249 ETSO-2C37e Class: D ETSO-2C38e Class: 4 TSO-C169a  Class: D, 4 B54AR6201 AR6201-(022) 0636.339-910 EASA.21O.1249 ETSO-2C37e ETSO-2C38e Class: D, E, 4, 6 TSO-C169a  Class: D, E, 4, 6 B54AR6201 AR6201-(122) 0636.355-910 EASA.21O.1249 ETSO-2C37e Class: D ETSO-2C38e Class: 4 Class: D, 4 TSO-C169a  Class: D, 4 B54AR6201   RT6201 Remote Transceiver  Part Number Article Number EASA Approval TSO Conformity FCC Approval RT6201-(010) 0631.442-910 EASA.21O.1249 ETSO-2C37e  Class: D, E ETSO-2C38e Class: 4, 6 TSO-C169a Class: D, E, 4, 6 pending RT6201-(020) 0636.312-910   RCU6201 Remote Control Unit  Part Number Article Number EASA Approval TSO Conformity FCC Approval RCU6201-(012) 0631.469-910 EASA.21O.1249 ETSO-2C37e Class: D, E ETSO-2C38e Class: 4, 6 TSO-C169a  Class: D, E, 4, 6 B54AR6201 RCU6201-(112) 0631.485-910 EASA.21O.1249 ETSO-2C37e Class: D ETSO-2C38e Class: 4 TSO-C169a  Class: D, 4 B54AR6201
  General Description Technical Data  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 29 AR6203 Single Block Transceiver  Part Number Article Number EASA Approval TSO Conformity FCC Approval AR6203-(012) 0630.993-910 EASA.21O.10054849 ETSO-2C169a  Class: C, H2, 4, 6 TSO-C169a  Class: D, E, 4, 6 pending AR6203-(112) 0631.566-910 EASA.21O.10054849 ETSO-2C169a  Class: C, 4 TSO-C169a  Class: C, 4 pending AR6203-(022) 0636.371-910 EASA.21O.10054849 ETSO-2C169a  Class: C, H2, 4, 6 TSO-C169a  Class: D, E, 4, 6 pending AR6203-(122) 0636.398-910 EASA.21O.10054849 ETSO-2C169a  Class: C, 4 TSO-C169a  Class: C, 4 pending    1.7.9.1. FCC Approval Radiofrequency radiation exposure information: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 50 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.  NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. NOTE: This device complies with Part 15 of the FCC Rules [and with Industry Canada licence-exempt RSS standard(s)]. Operation is subject to the following two conditions: • This device may not cause harmful interference, and  • This device must accept any interference received, including interference that may cause undesired operation. NOTE: Changes or modifications made to this equipment not expressly approved by Becker Avionics may void the FCC authorization to operate this equipment.
General Description   Order Code  30 Transceiver Family 620X DV14307.03 Issue 04 March 2016 1.8. Order Code 1.8.1. 620X  Qty AR6201 Single Block Transceiver  1 AR6201-(012), 8.33/25 kHz, 10 W at 28 V Article no. 0631.418-910 1 AR6201-(022), 8.33/25 kHz, 6 W at 12 V Article-no. 0636.339-910 1 AR6201-(112), 25 kHz, 10 W at 28 V Article-no. 0631.434-910 1 AR6201-(122), 25 kHz, 6 W at 12 V Article-no. 0636.355-910   Qty RT6201 Remote Transceiver  1 RT6201-(010), 8.33/25 kHz, 10 W at 28 V Article no. 0631.442-910 1 RT6201-(020), 8.33/25 kHz, 6 W at 12 V Article-no. 0636.312-910 1 RT6201–(110), 25 kHz, 10 W at 28 V Article-no. 0638.609-910 1 RT6201-(120), 25 kHz, 6 W at 12 V Article-no. 0638.617-910   Qty RCU6201 Remote Control Unit  1 RCU6201-(012), 8.33/25 kHz Article no. 0631.469-910 1 RCU6201-(112), 25 kHz Article-no. 0631.485-910   Qty AR6203 Single Block Transceiver  1 AR6203-(012), 8.33/25 kHz, 10 W at 28 V Article no. 0630.993-910 1 AR6203-(022), 8.33/25 kHz, 6 W at 12 V Article-no. 0636.371-910 1 AR6203-(112), 25 kHz, 10 W at 28 V Article-no. 0631.566-910 1 AR6203-(122), 25 kHz, 6 W at 12 V Article-no. 0636.398-910   1.8.2. Accessories  Qty Connector Kit  1 CK4201-S (soldering version); • Dsub 25-s, Connector housing, Antenna plug, Label "COMM" Article no. 0879.304-954 1 CK4201-C (crimp version); • Dsub 25-c, Connector housing, Antenna plug, Label "COMM" Article no. 0514.901-954 1 CK6000-S (soldering version); • Dsub Connector LE M 25pol, Connector housing Article no. 0640.621-954 1 CK6000-C (crimp version); • Dsub Connector LE M 25pol, Connector housing Article no. 0640.611-954 1 CK6200-S (soldering version); • Dsub25-s, Dsub25-p,2 Connector housings, Antenna plug, Label "COMM" Article no. 0617.903-954
  General Description Order Code  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 31 Qty Connector Kit  1 CK6200-C (crimp version); • Dsub25-s, Dsub25-p,2 Connector housings, Antenna plug, Label "COMM", Coding key Article no.0617.891-954 1 CK5000-S (soldering version); • Dsub15-s, Connector housing, Label "COMM", Label "NAV", Label "ADF", Label "XPDR" Article no. 0511.791-954 1 CK5000-C (crimp version);  • Dsub25-s, Connector housing, Label "COMM", Label "NAV", Label "ADF", Label "XPDR" Article no. 0511.781-954   Qty Cable harness  1 1K062 Cable harness AR62XX (open cable ends), length 3.7 m, for sailplanes, motor gliders, to be used for: • Headphone • Dynamic microphone • Speaker • PTT switch • Power supply Article no. 0621.390-950 1 1K065 Cable harness AR62XX (prepared with connectors), length 3.7 m, for general aviation, to be used for: • 2x Phone, jack socket PJ55 • 2x Standard microphone, jack socket PJ68 • 1x PTT switch • 1x Audio in, jack socket 3.5 mm • 1x Power supply Article no. 0621.455-950 For details please refer to "Predesigned Cable Harness", page 89.   Qty Mounting  1 Mounting Kit MK6201-(010) Article no. 0631.515-261 1 Mounting Kit MK6403-1 Article no. 0598.569-284 1 Adapter for AR3201 wiring 1AD042 Article no. 0877.522-959   Qty Available Documentation  1 Operating Instructions AR620X, RT6201, RCU6201, English Article no. 0638.420-071 1 Operating Instructions AR620X, RT6201, RCU6201, German Article no. 0641.413-071 1 Manual Installation and Operation 620X Family, English Article no. 0638.404-071
General Description   Order Code  32 Transceiver Family 620X DV14307.03 Issue 04 March 2016                       Blank Page
  Installation Limitations  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 33 2. Installation This manual must be available close to the device during the performance of all tasks. The installation of the transceiver depends on the type of aircraft and its equipment. Therefore, this section only provides general information. Careful planning should be applied to achieve the desired performance and reliability from the product. Any deviations from the installation instructions prescribed in this document shall be accomplished in accordance with the requirements set forth in FAA AC 43 (Federal Aviation Administration, Advisory Circular). In this chapter you can read about: 2.1. Limitations ................................................................................................................................... 33 2.2. Packaging, Transport, Storage ................................................................................................... 33 2.3. Device Assignment ..................................................................................................................... 34 2.4. Mechanical Installation ................................................................................................................ 36 2.5. Electrical Interface ....................................................................................................................... 44 2.6. Installation and Configuration ..................................................................................................... 52 2.7. Antenna Installation ..................................................................................................................... 53 2.8. Configuration Setup .................................................................................................................... 53 2.9. Factory Default Settings .............................................................................................................. 68 2.10. Wiring Diagrams and Settings..................................................................................................... 70 2.11. Predesigned Cable Harness ....................................................................................................... 89 2.12. Retrofitting AR4201 with AR6201 ............................................................................................... 89 2.13. Post Installation Tests ................................................................................................................. 92 2.14. Trouble Shooting ......................................................................................................................... 95 2.15. Continued Airworthiness ............................................................................................................. 96   2.1. Limitations 620X design allows installation in cockpit environment of general aviation aircraft including helicopters. Following limitations apply for the installation of the unit:  • Installations must be in accordance with appropriate EASA or FAA approved guidelines. The personnel installing this device must ensure that the aircraft installation conditions are within the ETSO/TSO standards applicable for the specific type or class of aircraft, • The 620X transceiver must be connecting to a VHF antenna in order to satisfy FAA TSO-C169a. • The conditions and tests for ETSO/TSO approval of this article are minimum performance standards.  • The equipment is not qualified for installation in areas where fluid contamination is quite likely.   Changes or modifications made to this equipment not expressly approved in written form by Becker may void the authorization to operate this equipment.   2.2. Packaging, Transport, Storage Visually inspect the package contents for signs of transport damage.  Packaging Material and Transport   The packaging material is inflammable, if it is disposed of improperly by burning, lethal fumes may develop.  The packaging material can be kept and reused in the case of a return shipment. Improper or faulty packaging may lead to transport damages.
Installation   Device Assignment  34 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Make sure to transport the device always in a safe manner and with the aid of suitable lifting equipment if necessary. Do never use the electric connections for lifting. Before the transport, a clean, level surface should be prepared to place the device on. The electric connections may not be damaged when placing the device. First Device Checkup • Check the device for signs of transport damages. • Please verify if the indications on the type plate correspond to your purchase order. • Check if the equipment is complete ("Scope of Delivery", page 34).  Storage If you do not wish to mount and install the device immediately, make sure to store it in a dry and clean environment. Make sure that the device is not stored near strong heat sources and that no metal chippings can get into the device.  2.3. Device Assignment This manual is valid for the following devices: • AR6201-(XX2) • AR6203-(XX2) • RT6201-(XX0) with RCU6201-(X12)   from Software Version SCI1050S305 Version 4.06 SCI1051S305 Version 2.06  Details see "Variants Overview", page 14  2.3.1. Scope of Delivery • Manuals  o Operating Instructions. • Device in accordance with your order. • Device accessories  • Documents of Certifications if available  2.3.2. Additional Required Equipment •  Mounting kit MK6403-1 (for AR6203) •  Mounting kit MK6201-(10) (for RT6201 to meet the conditions for certification). • Connector kits. • Cable harness. Details see "Order Code" page 30
  Installation Mechanical Installation  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 35 2.3.3. Type Plate The device type is defined by the type plate (on the housing):   Figure 2-1: Type plate (example) Explanation: PN: Type designation:  AR6201 = Single Block VHF Transceiver 58 mm (2¼ inch) AR6203 = Single Block VHF Transceiver 160 mm (6.3 inch) RT6201 = Remote VHF Transceiver RCU6201 = Remote Control Unit 58 mm (2¼ inch) Options: 0XX: 8.33/25 kHz channel spacing capability 1XX: 25 kHz channel spacing capability only X1X: 6 W @ 14 V / 10 W at 28 V X2X: 6 W @ 14 V XX2: white illumination colour on black panel SN: Unique number of the particular device AN: Article number DoM: Date of Manufacturing  Software: Corresponding to the displayed version  Compliance and Certifications Corresponding to the displayed text and logos     2.3.4. Software/Firmware Status – Functionality The software version is displayed at the screen for a few seconds after power on. Please contact our Customer Service for details about software modification updates.
Installation   Mechanical Installation  36 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.4. Mechanical Installation   The device must not be opened. When installing the device, make sure the heat dissipators of the device receive sufficient air. Keep an efficient distance of the devices with integrated ventilator fans in order to ensure free circulation of the cooling air. Make sure that the mounting plate is not exposed to external temperature influences. The mounting place shall be at least 30 cm from the magnetic aircraft compass, to avoid any interference to the magnetic compass (there are no restrictions for RCU6201mounting).   2.4.1. AR6201 and RCU6201 Installation (Back Panel Mounting) Leave a clearance of minimum 5 mm between the AR6201 respectively RCU6201 and other avionics to allow air circulation. Forced cooling is usually not required. For installation via rear side of the panel, four screws already attach to the front of the unit. The circular cut out and the mounting holes have to be prepared in accordance with Figure 2-3.  For unit dimensions refer to Figure 2-5,  Figure 2-4  and Figure 2-2.    Dimensions mm (inch)  61x61 mm (2.4x2.4 in)  Figure 2-2: AR6201 and RCU6201 front view Figure 2-3: Drilling template (back-panel mounting)
  Installation Mechanical Installation  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 37 Dimensions mm (inch) 39.3(1.55 in)61 (2.4 in)65.9±0.4 (2.59 in ±0.015)60.2±0.4 (2.37 in ±0.015) Figure 2-4: RCU6201 side view
Installation   Mechanical Installation  38 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Dimensions mm (inch)  CENTER OF GRAVITY61 (2.4 in)28.5±3 (1.12 in)16.4 ±0.5(0.65 in ±0.02)205.7 ±1.5 (8.098 in ±0.059)CG168.4 ±0.8 (6.63 in ±0.031)72.6 ±5(2.86 in ±0.2)CG17.9 ±0.4(0.70 in ±0.016)34.4±3 (1.35 in ±0.12) Figure 2-5: AR6201 top view, side view
  Installation Mechanical Installation  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 39 2.4.2. AR6203 Installation Install AR6203 in the aircraft instrument panel within easy view and reach of pilot/operator. The location for AR6203 installation shall be at least 30 cm away from the aircraft magnetic compass, to avoid any interference to the magnetic compass caused by the transceiver. Leave a clearance of minimum 5 mm between the AR6203 and other avionics to allow air circulation. Forced cooling is usually not required.  For installation of the AR6203 use the designated mounting kit MK6403-1. • Secure the mounting tray in the aircraft by using the 6 holes located on both sides of the frame, marked in the Figure with letter "C". Countersunk screws are included in the MK6403-1 kit.  • Slide AR6203 into the mounting tray all the way in, thereafter use an Allen wrench (3/32") to tightening the unit to its final position. Dimensions mm (inch)  CENTER OF GRAVITY152±0.3 (5.984 in ±0.011)38±0.3 (1.5 in ±0.012) 36.7(1.453 in)80 (3.149 in)CG158.8 (6.25 in)41.2(1.62 in)170.1±0.8 (6.697 in ±0.031)224.4±1.5 (8.83 in ±0.06) Figure 2-6: AR6203 top view, side view
Installation   Mechanical Installation  40 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Dimensions mm (inch)  Figure 2-7: Mounting kit MK6403-1 (for AR6203)  Dimensions MK6403 H 40.6 mm (1.598 in) W 160.3 mm (6.311 in) D 153.8 mm (6.055 in)
  Installation Mechanical Installation  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 41 2.4.3. RT6201 Installation Install the RT6201 at a suitable place in the aircraft for example directly on avionic bay or by using mounting kit MK6201-(010).    To meet the conditions for certification use the mounting method with mounting kit.  The mounting location for RT6201 shall be at least 30 cm away from the aircraft magnetic compass, to avoid any interference to the magnetic compass by the transceiver. Leave a clearance of minimum 5 mm between the RT6201 and other avionics to allow air circulation. Forced cooling is usually not required. RT6201: Installation using RT6201 Mounting Holes The required dimensions for installation using the mounting holes on the RT6201 are given in Figure 2-11 (dedicated holes are marked with "X" letter).  Dimensions mm (inch)  CENTER OF GRAVITY85 (3.346 in)188±1 (7.4 in ±0.4)172.5±1 (6.79 in ±0.4)164.9±0.5 (6.49 in ±0.196)15(0.59 in) 40(1.57 in) 61 (2.4 in)25 (0.98 in) Figure 2-8: RT6201 top view, side view
Installation   Mechanical Installation  42 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Dimensions mm (inch)    Figure 2-9: RT6201 front view Figure 2-10: MK6201-(010) mounting kit   Figure 2-11: RT6201 with mounting kit MK6201  X
  Installation Mechanical Installation  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 43 RT6201: Installation using Mounting Kit The necessary dimensions for installation using the mounting kit MK6201-(010) are given in Figure 2-12 (dedicated holes marked with "B" letter).  Dimensions mm (inch)  Figure 2-12: MK6201-(010) mounting slot fixing holes  First, secure the mounting kit frame in the aircraft, and then slide flat part "X" Figure 2-11 of the RT6201 into the mounting slot S (Figure 2-10). Use two M3 screws to tighten the unit to the mounting slot (details "A" shown on Figure 2-13).Suitable means are for example M3x6 DIN7985, associated flat washer 3.2 DIN433 and spring washer 3.1 DIN127B.  Figure 2-13: RT6201 top view, fixed on mounting slot
Installation   Electrical Interface  44 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.5. Electrical Interface 2.5.1. Connector and Pin Assignment (AR620X and RT6201) Antenna Connector (Position 1) The antenna connector (Figure 2-14, position 1) is a BNC type. The antenna port designed for operating with a nominal impedance of 50 Ω. Grounding Bolt (Position 2) The transceiver has a M4 threaded grounding bolt (Figure 2-14,position 2) allowing a low impedance grounding of the unit, which is essential to avoid damage or malfunction in the case of indirect lightning, EMI and HIRF conditions.  Figure 2-14: Rear plate AR6201 and RT6201, connectors P1 (male) and J1 (female)   Figure 2-15: Rear plate AR6203, connectors P1 (male) and J1 (female)
  Installation Electrical Interface  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 45 P1 Connector (System Interfaces) The P1 connector (Figure 2-14 and Figure 2-15, Position 3) is a DSUB male connector with 25 pins and slide-in fastener. Pin No. Pin Name Direction Function P1-1 SPK_HI OUT Speaker output signal (hot) P1-2 HDPH1_A OUT Balanced output for headphone(s)1  P1-3 HDPH1_B OUT Balanced output for headphone(s)1 P1-4 AF_AUX_IN_HI IN Auxiliary audio input (hot) P1-5 MIKE_DYN_HI IN Balanced input for dynamic microphone(s) P1-6 MIKE_DYN_LO IN Balanced input for dynamic microphone(s) P1-7 /IC IN Intercom key input; ACTIVE state - closed contact to GND P1-8 MIKE_STD_LO - Standard microphone(s) low (ground/return) used for STD1, STD2 and STD3 P1-9 MIKE_STD2_HI IN Standard microphone 2 High (hot) P1-10 ILL_LO IN Illumination low input P1-11 P_SUPP IN Power supply Hot (positive) P1-12 P_SUPP IN Power supply Hot (positive) P1-13 P_SUPP_GND - Power supply ground (return) P1-14 SPK_LO - Speaker ground (return) P1-15 LINE_OUT OUT Linear audio output, unbalanced P1-16 AGC_OUT OUT Receiver AGC output P1-17 /PTT1 IN Press To Talk key input1  ACTIVE state - closed contact to GND P1-18 MIKE_STD1_HI IN Standard Microphone 1 High (hot) P1-19 MIKE_STD3_HI IN Standard Microphone 3 High (hot) P1-20 HDPH2_A OUT Balanced Output for headphone(s)2 P1-21 AF_AUX_IN_LO IN Auxiliary audio input low (return) P1-22 HDPH2_B OUT Balanced output for headphone(s)2 P1-23 ILL_HI IN Illumination high   /PWR_EVAL OUT Power on monitor output P1-25 P_SUPP_GND - Power supply ground (return)
Installation   Electrical Interface  46 Transceiver Family 620X DV14307.03 Issue 04 March 2016 J1 Connector (Serial Interfaces and Discrete I/O’s) The J1 connector is a D_SUB female connector with 25 sockets and slide-in fastener. Pin No. Pin Name Direction Function J1-1 CPIN - Reserved coding pin J1-2 TX2+ OUT Auxiliary control interface J1-3 RX2+ IN Auxiliary Control Interface J1-4 /SQL_EVAL  OUT Squelch monitor output ACTIVE state - closed contact to GND J1-5 /PTT2 IN Press-To-Talk key input 2  ACTIVE state - closed contact to GND J1-6 SHIELD_1 - Secondary control & service interface SHIELD J1-7 TX1+ OUT Secondary control & service interface J1-8 RX1+ IN Secondary control & service interface J1-9 TX2- OUT Auxiliary control interface J1-10 RX2- IN Auxiliary control interface J1-11 SHIELD_2 - Auxiliary control interface SHIELD J1-12 /EXT_SO IN External "Exchange" key Falling edge will activate frequency exchange J1-13 /SRV_EN IN Service enable pin ACTIVE state - closed contact to GND J1-14 TX1- OUT Secondary control & service interface J1-15 RX1- IN Secondary control & service interface J1-16 NC  not connected J1-17 /SQL_SW IN "Squelch Force-OFF" input ACTIVE state - closed contact to GND J1-18 NC  not connected J1-19 NC  not connected J1-20 /ISOL IN "ISOL" input  ACTIVE state - closed contact to GND J1-21 D_GND - Discrete lines ground J1-22 D_GND - Discrete lines ground J1-23 D_GND - Discrete lines ground J1-24 /MIKE_SW IN Configuration selector CFG1 and CFG2  J1-25 /EXT_ON IN External Power ON input ACTIVE state - closed contact to GND
  Installation Electrical Interface  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 47 2.5.1.1. Inputs / Outputs Microphone Connection – Standard Microphones Pin No. Pin Name Direction Function P1-8 MIKE_STD_LO - Standard microphone(s) low (ground/return) used for STD1, STD2 and STD3 P1-9 MIKE_STD2_HI IN Standard microphone 2 high (hot) P1-18 MIKE_STD1_HI IN Standard microphone 1 high (hot) P1-19 MIKE_STD3_HI IN Standard microphone 3 high (hot)  The transceiver has three unbalanced inputs STD1, STD2 and STD3. Each input has an input impedance of 110 Ω and a nominal sensitivity of 110 mV. This sensitivity level is adjustable in the configuration setup from 9...1500 mV independently for each of the microphones. The power supply delivered from pins P1-9, P1-18 and P1-19 for supply of the connected microphone(s) is > 8 V DC (8.3 V nominal) open circuit with an output impedance of 120 Ω.   Note:  • Sensitivity range 25...1000 mV was qualified under environmental conditions.  • The AR/RT620X transceiver family provides power supply to support two microphones in parallel on each of the three standard microphone inputs. Combining only microphones of the same type / impedance is always highly recommended.  • In installations where high interferences were detected, we recommend the use of sensitivity levels between 27...1500 mV. • We also recommend mounting the jacks generally isolated from aircraft frame in order to avoid ground loops.  Microphone Connection - Dynamic Microphone Pin No. Pin Name Direction Function P1-5 MIKE_DYN_HI IN Balanced input for dynamic microphone(s) P1-6 MIKE_DYN_LO IN Balanced input for dynamic microphone(s)  Interfacing with dynamic microphones, the transceiver provides balanced inputs with an impedance of 140 Ω and a nominal sensitivity of 1.6 mV. This sensitivity level is adjustable in the configuration setup from 1...20 mV. Two dynamic microphones in parallel may be connected (identical technical characteristics of the microphones are preferable). Note:  • The sensitivity range of 1...20 mV was qualified under environmental conditions. In installations where high interferences are detected we recommend the use of sensitivity levels between 2...20 mV. • We also recommend mounting the jacks generally isolated from aircraft frame in order to avoid ground loops.  Speaker Connection Pin No. Pin Name Direction Function P1-1 SPK_HI OUT Speaker output signal P1-14 SPK_LO - Speaker ground (return)  The speaker output provides nominal 4 W into 4 Ω.
Installation   Electrical Interface  48 Transceiver Family 620X DV14307.03 Issue 04 March 2016  The magnetic field of a speaker influences the magnetic compass. When choosing the mounting point, a safe distance between the compass and the speaker must be determined. After speaker installation, verify the accuracy of the magnetic compass.  Headphone(s) Connection Pin No. Pin Name Direction Function P1-2 HDPH1_A OUT Balanced output for headphone(s) 1 P1-3 HDPH1_B OUT Balanced output for headphone(s) 1 P1-20 HDPH2_A OUT Balanced output for headphone(s) 2 P1-22 HDPH2_B OUT Balanced output for headphone(s) 2  The headphone 1 output is a balanced, transformer-coupled output providing nominal 300 mW into 75 Ω. Using a shielded single wire for headphones requires an unbalanced output configuration. To achieve this, ground P1-3 (connect pin P1-13 with P1-25). The headphone 2 output is a balanced output providing nominal 200 mW into 75 Ω. Up to two headphones with phone-impedance of 300 Ω (or higher) may be connected in parallel on each circuit, therefore up to four headphones can be connected at the same time. Note: It is highly recommended to mount the jacks isolated from aircraft frame in order to avoid ground loops. CAUTION: The headphone 2 output shall be always floating (cannot be connected in unbalance configuration as headphone 1). Panel Illumination Pin No. Pin Name Direction Function P1-10 ILL_LO IN Illumination low input P1-23 ILL_HI IN Illumination high input  The VHF transceiver provides illumination for pushbuttons and LCD display. Configuration of panel illumination provides the configuration setup accessible via front panel. Depending on setup selection, 14 or 28 V fixed illumination voltage, or aircraft dim-bus voltage is in operation. Connect ILL_LO (pin P1-10) to aircraft ground. Connect ILL_HI (pin P1-23) to dimming bus. "Auxiliary" Audio Input Pin No. Pin Name Direction Function P1-4 AF_AUX_IN_HI IN Auxiliary audio input hot P1-21 AF_AUX_IN_LO - Auxiliary audio input low return  The AF auxiliary input enables to connect an external audio source (NAV, music-player, etc.) to the transceiver. The external audio is audible only when transceiver is in receiving mode. Input sensitivity is adjustable in the configuration setup from 50 mV...8 V. The impedance of this input is 600 Ω. "LINE_OUT" Audio Output Pin No. Pin Name Direction Function P1-14 SPK_LO - Speaker ground (return) P1-15 LINE_OUT_HI OUT Linear audio output, unbalanced  The LINE OUT enables to connect e.g. an external voice recorder to the transceiver when used in ground-based installations. The LINE OUT output provides nominal 1 VRMS into 1000 Ω.
  Installation Electrical Interface  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 49 External Power ON Pin No. Pin Name Direction Function J1-25 /EXT_ON IN External Power ON input ACTIVE state - closed contact to GND  External Power ON input provides possibility to power "ON"  the system by connecting this pin to ground. Push-To-Talk (/PTT) Pin No. Pin Name Direction Function P1-17 /PTT1 IN Push-To-Talk key input 1 ACTIVE state - closed contact to GND J1-5  /PTT2 IN Push-To-Talk key input 2 ACTIVE state - closed contact to GND  There are two Push-to-Talk inputs available /PTT1 and /PTT2, e.g. one for the pilot and the other for the co-pilot. Each input has an internal pull up. While the input is connected to ground a current of less than 1 mA will flow. The transceiver enters transmit operation, if either one or both inputs are connected to ground. According to microphone(s) configuration, signal from particular inputs can or cannot modulate transmissions.  External Intercom Key (IC) Pin No. Pin Name Direction Function P1-7  IC IN Intercom key input; ACTIVE state - closed contact to GND  With pin 7 connected to ground the transceiver provides intercom operation. This input has an internal pull up and is LO active. For installations where automatic intercom operation activates via VOX, a connection of pin 7 is not necessary. While connected to ground, a current of max. 1 mA will flow. This discrete input activates the intercom: • When VOX does not work satisfactorily because of extreme loud cockpit environment caused e.g. by ambient noise. • When speaker is enabled in current audio in/out configuration (configuration setup) Isolation Mode (/ISOL) Pin No. Pin Name Direction Function J1-20 /ISOL IN ISOL input for separation from co-pilot (passenger) ACTIVE state - closed contact to GND  AR620X transceiver provides two microphone paths. Each microphone path allows connection of two individual microphones. Depending on configuration, it is possible to connect pilot and co-pilot microphones on one path and two passenger microphones on the second. When /ISOL is active (isolation mode) passengers are isolated from pilots intercom as well as from the radio transmission, but still can freely communicate with each other. When /ISOL is inactive both the pilots and the passengers connected to one common intercom circuit.
Installation   Electrical Interface  50 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Power Indication (/PWR_EVAL) Pin No. Pin Name Direction Function P1-24 /PWR_EVAL OUT Power on Monitor output: AR6201 "OFF" - open circuit AR6201 on - closed circuit to GND (max. 100 mA)   This output indicates whether the transceiver is in "ON" or "OFF" status by means of an open collector function. The output internally connects to ground when the unit is "ON"  and allow a current of maximum 100 mA to drive an external relay for example. The output shows high impedance when the transceiver is "OFF".  Note: In order to avoid damage of this output a protection diode in parallel to the external relay shall connected. Rel1+Supply/PWR_EVAL VHF Channel Signal Indication (/SQL_EVAL) Pin No. Pin Name Direction Function J1-4  /SQL_EVAL OUT Indicates presence of the VHF channel’s signal on the audio outputs.  This output indicates presence of the VHF channel’s signal on the audio outputs. It is an open collector output type. The output internally connects to ground when the unit receives signal on the selected VHF channel and this audio signal is available on audio outputs. In this case a current of maximum 100 mA can flow into the transceiver to drive an external relay for example. The output has high impedance if the unit is switched off. External Mike Switch (/MIKE_SW) Pin No. Pin Name Direction Function J1-24 /MIKE_SW IN Configuration selector CFG1 and CFG2.  ACTIVE state - closed contact to GND  The external Mike switch provides selection between the two available audio in/out configurations: CFG1 and CFG2. Configurations can also be changed during flight in configuration setup. • When /MIKE_SW is active then configuration CFG1 is in use. • When /MIKE_SW is inactive then CFG2 is in use. Each configuration CFG1 and CFG2 stores several parameters that can be set in configuration setup pages. (For details, refer to chapter 2.8).
  Installation Electrical Interface  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 51  2.5.2. Connector and Pin Assignment (RCU6201)  Figure 2-16: Connector on rear plate of RCU6201 P1 Connector (System Interface) The P1 connector (Figure 2-16) is a DSUB male connector with 15 pins and slide-in fastener. Pin No. Pin Name Direction Function P1-1 TX0_422+ OUT Primary Control & Service Interface P1-2 TX0_422- OUT Primary Control & Service Interface P1-3 RX1_422+ IN Auxiliary Control Interface P1-4 RX0_422+ IN Primary Control & Service Interface P1-5 RX0_422- IN Primary Control & Service Interface P1-6 ILL_LO IN Illumination low input P1-7 TX1_422- OUT Auxiliary Control Interface P1-8 ILL_HI IN Illumination high P1-9  GND  - Power supply Ground (return), shielding for RS422, Ground for discrete lines P1-10 RX1_422- IN Auxiliary Control Interface P1-11 SUPP_IN - Power supply Hot (positive) P1-12 /SRV_EN OUT Service enable pin ACTIVE state - closed contact to GND P1-13 /EXT_ON IN External Power ON input ACTIVE state - closed contact to GND P1-14 TX1_422+ OUT Auxiliary Control Interface P1-15 /EXCH_CH IN External "Exchange" key ACTIVE state - closed contact to GND   Panel Illumination Pin No. Pin Name Direction Function P1-6 ILL_LO IN Illumination low input P1-8 ILL_HI IN Illumination high input  The RCU6201 controller push-buttons and LCD display can be illuminated. The illumination can be configured in the configuration setup via front panel or externally via pin P1-6/P1-8 For external configuration connect pin P1-6 to system ground and pin P1-8 to dimming voltage bus.
Installation   Installation and Configuration  52 Transceiver Family 620X DV14307.03 Issue 04 March 2016 External Power ON (/EXT_ON) Pin No. Pin Name Direction Function P1-13 /EXT_ON IN/OUT External Power ON input/output ACTIVE state - closed contact to GND  The External Power "ON" input provides the possibility to power on the system by ensuring this pin is earthed. This can be connected in installations with a central avionics power switch or to power on RT6201. External Exchange (/EXCH_CH) Pin No. Pin Name Direction Function P1-15 /EXCH_CH IN External "Exchange" key ACTIVE state - closed contact to GND  The External "Exchange" input provides possibility to change active and preset frequency or activate SCAN mode by means of momentary switch. 2.6. Installation and Configuration Connection to the following equipment is required as minimum for 620X transceivers: • Power supply • Antenna • Microphone (direct or via external audio panel) • Headphone or speaker (direct or via external audio panel) • Push-To-Talk (PTT) switch   Use only cables which are qualified for aircraft use (self-extinguishing). Use AWG 20 for power supply and AWG 22/24 for other cables. Fit sleeves over the solder joints on the equipment connector. Crimp connectors are also available from Becker. Protect the power supply with a 7.5 A fuse.  The VHF transceiver is protected internally by a 5 A fuse.  • Type-specific cable harnesses are also available for the aircraft wiring (contact Becker Avionics for detailed information).  •  No RF antenna cables or HF cables should be included in the cable harnesses of the system. Avoid routing of the cable loom along with other wiring, which carry audio power or pulses.  • Check the wiring carefully before powering up the unit and check particularly that power supply lines are not interchanging.
  Installation Antenna Installation  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 53 Installation of 620X transceivers requires correct wiring and configuration. All necessary information for common installations shows chapter  "Installation", page 33, including wiring diagrams and recommended configurations.  Aircraft Type Chapter Reference Single Seat Glider 2.10.1, page 70 Twin Seat Motor Glider 2.10.2, page 73 General Aviation (GA) Aircraft 2.10.3, page 75 Individual Dual Headset Configuration (two IC Circuit) 2.10.4, page 77 Twin Seat with AR620X Tandem Configuration 2.10.5, page 79 Aircraft with four Seats (no TANDEM) 2.10.6, page 81 Installation with RT6201 and RCU6201 2.10.7, page 83 Aircraft with Intercom System 2.10.8, page 84 Twin Seat with RT6201 Tandem Configuration 2.10.9, page 87   2.7. Antenna Installation The transceiver requires a standard 50 Ω vertically polarized VHF antenna. Follow manufacturer's instructions for antenna installation. In addition, consider the following recommendations:  • The COM antenna shall be on an electrical conductive surface or, on a ground plane with sufficient area of approximately 60 x 60 cm installed. (VSWR ≤ 3:1)  • Separate the COM antenna from any installed GPS antennas by at least 50 cm and as far away from any ELT antenna. Note:  Some ELTs have exhibited re-radiation problems generating harmonics that may cause interference with other receivers like GPS. This can happen when the transceiver or other COMM devices are transmitting on certain frequencies such as 121.5 MHz or 121.175 MHz, which may cause the ELT output circuit to auto-oscillate.  2.8. Configuration Setup The  configuration setup enables the avionics technician to set up the equipment configuration on ground. We do not recommend performing changes on the configuration setup in-flight. In most cases, entering configuration setup will be from the primary controller to access controller and transceiver parameters. If installed, the second controller (RCU6201)  should be switched off. Configuration setup on RCU6201 gives access to parameters of second controller. RCU6201 configuration setup shall be used only if different settings for "BRIGHTENSS"  or  "ILLUMINATION CURVE" are required. Note:    • For single block AR620X, primary controller is this one directly connected to transceiver, for remote RT6201 transceiver primary controller is this one connected to primary control interface. • After power on the second controller (RCU6201) parameters are synchronized with those stored in primary controller. Any stored parameters in second controller (RCU6201) will be overwritten!
Installation   Configuration Setup  54  Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.8.1. Start Configuration Setup Hold down the "MDE"  key during power up to access the configuration setup. The "PASSWORD DIALOG" screen will appear. 6435PASSWORD Figure 2-17: "PASSWORD DIALOG" Insert the 4-digit numerical code password "6435" by turning and pushing the "ROTARY ENCODER". Confirm by pressing the "STO"  key. Now the first page of configuration setup shows the "DEVICE INFO" screen. CM SW VER 2.06CH SW VER 4.06AR SN 03665DEVICE INFO Figure 2-18: "DECIVE INFO"  2.8.2. Navigate between Pages The configuration setup consists of several pages. Navigation within main pages: Page Down (next page): press "↕/SCN" or the "ROTARY ENCODER". Page Up (previous page): press "IC/SQL" key. For navigation within the sub-pages of the configuration setup, use the "ROTARY ENCODER". 2.8.3. Store Setup Data The setting of any parameter is stored immediately after changing the parameter.  2.8.4. Leave Configuration Setup Switch "OFF" the AR620X or RCU6201 to terminate the setup. All changes made up to this time will be stored automatically. No special action is required before leaving setup page. 2.8.5. Adjust Volume Settings (VU Meter) The VU Meter allows correct adjustment of audio input sensitivity. It  is displayed on all sensitivity setting menus. Display Contents Description Example: 17 dB 3.5 mVVUDYN MIKE SENS1 23 1: Current audio level 2: Hold max. level 3: Recommended range  (inside frame)  VU Meter, it is located in the middle below the menu name and above the dedicated sensitivity setting bar. It displays the current audio level value on selected audio input ("Current audio level") and holds the highest value of active audio level recorded during last 3 seconds (displayed as "Hold max level" bar).  Correct sensitivity is achieved if most of the time, while you are speaking normally into the microphone, the "Hold max level" bar remains in the "Recommended range".
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 55 2.8.6. Configuration Setup Pages - Description Display Contents Description  "DEVICE INFO": After entering the "Configuration Setup" the first page "DEVICE INFO" is displayed. This page shows information about the SW version and the serial number of the transceiver. AR620X  CM SW VER 2.06CH SW VER 4.06AR SN 03665DEVICE INFO  For AR620X "DEVICE INFO" displays information about; • Transceiver SW version (CM SW VER). • Controller SW version (CH SW VER). • AR620X serial number (AR SN). RCU6201 as primary controller of RT6201  CM SW VER 2.06CH SW VER 4.06CM SN 00005CH SN 00005DEVICE INFO  For RCU6201 connected as primary controller of an RT6201, this page displays information about; • Transceiver SW version. • Controller SW versions (CH SW VER). • RT6201 serial number (CM SN). • RCU6201 serial number (CH SN). RCU6201 as secondary controller  CH SW VER 4.06CH SN 00005DEVICE INFO  For RCU6201 connected as secondary controller this page displays information about; • Controller SW version (CH SW VER). • RCU6201 serial number (CH SN).  "DIMMING INPUT": One of three options can be selected by turning the "ROTARY ENCODER" to dim illumination for the display and push-button. Finalize the selection by pressing "STO" push-button. NONE NONE: The illumination for LCD and push-buttons is controlled via the "ROTARY ENCODER" on the transceiver itself. The pilot can adjust the brightness in the user menu.  0…14 V or 0…28 V: The background lighting for LCD and push-buttons is controlled (via pin P1-10/P1-23) by the dimming bus of the aircraft. The dimming curve is adjustable within the range from 0…14 VDC respectively 0…28 VDC. Adjusting the brightness via the "ROTARY ENCODER" is no longer possible after selecting this option.  Note: Menu available on primary and secondary controller.
Installation   Configuration Setup  56 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Display Contents Description 65BRIGHTNESS "BRIGHTNESS": The brightness of the LCD and push-button illumination can be adjusted between 0% (off) and 100%. Select your brightness by turning "ROTARY ENCODER". The BRIGHTNESS settings can also be adjusted in the user menu. Pilots can change the parameter at any time. BRIGHTNESS settings are separate for each controller therefore this menu is available on both controllers. Note: This page is displayed only if dimming input is set to "NONE". Otherwise the aircraft dimming bus will control the brightness  14VILLUMILLUM CURVE  "ILLUM CURVE": The page "ILLUM CURVE" is displayed only if the DIMMING input is either selected for "14 V or 28 V" dim-bus voltage. The illumination curve shows the relation between dimming bus voltage and brightness of the LCD and push-button illumination.  Two adjustable points V1 and V2 define the illumination curve.  Select the respective parameter by pushing the "STO" button and then adjust the value in horizontal (left/right) respectively vertical (up/down) direction using the "ROTARY ENCODER".  Note: Menu available on primary and secondary controller. 14VILLUMILLUM CURVE (1) This parameter defines the horizontal parameter V1x (minimum values: 1.5 V for 14 V dimming bus and 4 V for 28 V dimming bus). Up to this value the brightness is zero. When reaching V1x the brightness is immediately adjusted to V1y. 14VILLUMILLUM CURVE (2) This parameter defines the vertical parameter  V1y which is the level of brightness that is set when trigger point V1x is reached.  14VILLUMILLUM CURVE (3) This parameter defines the horizontal parameter V2x (maximum values: 14 V or 28 V depending on selected dimming input) where the illumination curve reaches the maximum brightness level. 14VILLUMILLUM CURVE (4) This parameter defines the vertical parameter V2y which is the maximum brightness.
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 57 Display Contents Description  "MEM OPTIONS": Two options can be selected on "MEMORY OPTIONS" page. By means of the "ROTARY ENCODER" one option can be highlighted and enabled/ disabled by pushing the "STO" button.  CHANNEL STORE STORE LAST CHANNELSMEM OPTIONS  CHANNEL STORE:  If this option is enabled frequencies can be stored in any of the 99 available channels.  Even if the "CHANNEL STORE" option is disabled the user has access to previously stored "User Channels" STORE LAST CHANNEL  If this option is enabled, the device automatically stores the last used VHF frequency in "Last Channel" database and user has a read access to this database.  If this option is disabled the stored data in the "LAST CHANNEL" database is not accessible. Note: Menu available on primary and secondary controller.  "MDE PAGES": On "MDE PAGES" page three options are selectable by means of the "ROTARY ENCODER". The three frequency selection modes provide different user interfaces for operating frequency selection. Enabling/Disabling can be toggled by pushing the "STO" button. STANDBY FREQUENCY BATTERY VOLTAGE CHANNEL MEMORYMDE PAGES  STANDBY FREQUENCY Enables/disables "Standard Mode"  BATTERY VOLTAGE Enables/disables "Direct Tune Mode".  CHANNEL MEMORY  Enables/disables "Channel Mode".   After deselecting "BATTERY VOLTAGE" the "DIRECT TUNE MODE" page is no longer available in the normal operation.  Storing a frequency in a specific channel will be possible even if only "BATTERY VOLTAGE" or "STANDBY FREQUENCY" remain selected.  At least one page will remain active, deselecting all options from the "MDE PAGES" is not possible Note: Menu available on primary and secondary controller.  "LOW BATT THR": On "LOW BATT THR" page the threshold for indication of the "LOW BATT" warning page can be adjusted (default setting is 10.5 V). The low battery threshold depends on battery type in use and should be adjusted within 10…33 V by the installer turning the "ROTARY ENCODER". "LOW BATT" warning page is displayed if the supply voltage drops below the "LOW BATT THR" value. 10.5LOW BATT THR Recommended vales: "LOW BATT THR" = 11 V for 12 V battery "LOW BATT THR" = 24 V for 24 V battery Note: Menu available on primary and secondary controller.
Installation   Configuration Setup  58 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Display Contents Description  "CONFIGURATION": On "CONFIGURATION" page 6 or 7 options can be selected. (refer to the note under AUX AUTO MUTE in the column on the right side). Use the "ROTARY ENCODER" to scroll up and down, then and push the "STO" button for selection. TANDEMAUX INPUTAUX AUTO MUTEAUTO ISOL IN TXCONFIGURATION Options 1...4   AUTO ISOL IN TX SCAN BEEP FREQ CHANGE BEEPSWAP MIKE ICCONFIGURATION Options 4...7  TANDEM  If selected, a second controller RCU6201 can be connected to AR620X/RT6201.  AUX INPUT  If selected, the auxiliary audio signal applied to pins P1-4 / pin P1-21 is audible on headphone / speaker.  Note: If the auxiliary audio input is not used, it is recommended to deselect "AUX INPUT".   AUX AUTO MUTE  If selected the auxiliary audio input will be muted. The auxiliary audio input is also muted if the receiver detects (based on squelch evaluation) a signal.  When deselected the auxiliary audio input signal and the receiver signal will intermix continuously.  Note: "AUX AUTO MUTE" is only displayed when "AUX INPUT" is enabled.   AUTO ISOL IN TX  If selected a separation between the pilots and passenger intercom circuits is provided while one of the pilots transmits.  SCAN BEEP If selected the transceiver generates (only in scan function) a short beep tone to notify a signal presence on the "PRESET FREQUENCY". During signal reception on the "ACTIVE FREQUENCY" switch over to the "PRESET FREQUENCY" is not possible. The audio remains on "ACTIVE FREQUENCY" and a short beep tone is audible. Additionally the "PRESET FREQUENCY" will appear contrast inverted in a sequence of approximately one second.  FREQ CHANGE BEEP  If selected the transceiver generates a short beep on each change of the "ACTIVE FREQUENCY".  SWAP MIKE IC  If selected the /IC input functions as /MIKE_SW input and /MIKE_SW input operates as /IC input.  20 dB 800 mVVUAUX IN SENS  "AUX IN SENS": On "AUX IN SENS" page the sensitivity adjustment of the auxiliary audio input (Pin P1-4 / Pin P1-21), in the range 50...8000 mV, can be set by turning the "ROTARY ENCODER".  This page is displayed only if ENABLE_AUX_IN is activated. The VU meter shows the current signal level of the aux audio input and always displays the highest detected signal value from the last 3 seconds.  Note: Menu available on primary controller.
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 59 Display Contents Description 20AUTO AUX ATT  "AUTO AUX ATT": On "AUTO AUX ATT" page the attenuation for the auxiliary audio input can be adjusted between 0...40 dB by turning the "ROTARY ENCODER" When intercommunication is initiated (regardless of the intercom activation: "VOX", or "/IC" discrete input) the signal from auxiliary audio input will be attenuated. After intercommunication is finished the auxiliary audio will revert to its previous level.  Note: Menu available on primary controller.  "IN/OUT CFG 1": On "IN/OUT CFG 1" page the microphone inputs and headphone outputs for configuration CFG1 can be configured.  To scroll the page turn the "ROTARY ENCODER". MICROPHONE 1○ STD 1 MIKE○ STD 2 MIKE○ STD 3 MIKE● DYN MIKE○ NONEMICROPHONE 2○ STD 1 MIKE○ STD 2 MIKE○ STD 3 MIKE○ DYN MIKE● NONEMIC ACTIVATION BOTH MIKESOUTPUTS HEADPHONE 1○ HEADPHONE 1● SPEAKER○ NONEIN/OUT CFG 1  "MICROPHONE 1" (at one time only one option can be selected): STD1 MIKE Standard microphone input 1 (Pins P1-18/ P1-8) is selected. STD2 MIKE  Standard microphone input 2 (Pins P1-9/ P1-8) is selected. STD3 MIKE  Standard microphone input 3 (Pins P1-19/ P1-8) is selected. DYN MIKE  Dynamic microphone input (Pins P1-6/ P1-5) is selected. NONE  No microphone is used in microphone path 1.  "MICROPHONE 2" (at one time only one option can be selected): STD1 MIKE  Standard microphone input 1 (Pins P1-18/ P1-8) is selected. STD2 MIKE  Standard microphone input 2  (Pins P1-9/ P1-8) is selected. STD3 MIKE  Standard microphone input 3 (Pins P1-19/ P1-8) is selected. DYN MIKE  Dynamic microphone input (Pins P1-6/ P1-5) is selected. NONE  No microphone is used in microphone path 2.  "MIC ACTIVATION" BOTH MIKES ENABLED: Input /PTT1 (Pin P1-17) activates transmission from microphone path 1 and 2. Input /PTT2 (Pin J1-5) activates transmission from microphone path 2 and path 1. Input /IC (Pin P1-7) activates intercom from microphone path 1 and 2.  BOTH MIKES DISABLED: Input /PTT1 (Pin P1-17) activates transmission only from microphone path 1  Input /PTT2 (Pin J1-5) activates transmission only from microphone
Installation   Configuration Setup  60 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Display Contents Description path 2 Input /IC (Pin P1-7) activates intercom only from microphone path 1  "OUTPUTS" HDPH 1 ENABLED  Audio available on headphone 1 output (Pins P1-2/P1-3) HDPH 1 DISABLED  No audio available on headphone 1 output. HDPH 2 ENABLED  Audio is available on headphone 2 output (Pins P1-20/P1-22), speaker not available. HDPH 2 DISABLED No audio available on headphone 2 output, speaker not available. SPEAKER ENABLED  Audio is available on speaker (Pins P1-1/P1-14), headphone 2 not available NONE  No audio on headphone 2 output or speaker output. Note: Menu available on primary controller. Displayed only if MIKE_SW input (Pin J1-24) has inactive state.  "IN/OUT CFG 2": On "IN/OUT CFG 2" page the microphone inputs and headphone outputs for configuration CFG2 can be configured. This page is displayed only if MIKE_SW input (Pin J1-24) has active state. Please note when MIKE_SW connected in installation both configurations for IN/OUT CFG1 and IN/OUT CFG2 shall be configured. To scroll the page turn the "ROTARY ENCODER". MICROPHONE 1○ STD 1 MIKE○ STD 2 MIKE○ STD 3 MIKE● DYN MIKE○ NONEMICROPHONE 2○ STD 1 MIKE○ STD 2 MIKE○ STD 3 MIKE○ DYN MIKE● NONEMIC ACTIVATION BOTH MIKESOUTPUTS HEADPHONE 1○ HEADPHONE 1● SPEAKER○ NONEIN/OUT CFG 2  "MICROPHONE 1" (at one time only one option can be selected): STD1 MIKE  Standard microphone input 1 (Pins P1-18/ P1-8) is selected STD2 MIKE  Standard microphone input 2 (Pins P1-9/ P1-8) is selected STD3 MIKE  Standard microphone input 3 (Pins P1-19/ P1-8) is selected DYN MIKE  Dynamic microphone input (Pins P1-6/ P1-5) is selected NONE  No microphones is used in microphone path 1   "MICROPHONE 2" (at one time only one option can be selected): STD1 MIKE  Standard microphone input 1 (Pins P1-18/ P1-8) is selected STD2 MIKE  Standard microphone input 2 (Pins P1-9/ P1-8) is selected STD3 MIKE  Standard microphone input 3 (Pins P1-19/ P1-8) is selected
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 61 Display Contents Description DYN MIKE  Dynamic microphone input (Pins P1-6/ P1-5) is selected NONE  No microphones is used in microphone path 2  "MIC ACTIVATION" BOTH MIKES ENABLED: Input /PTT1 (Pin P1-17) activates transmission from microphone path 1 and 2 Input /PTT2 (Pin J1-5)  activates transmission  from microphone path 2 and 1 Input /IC (Pin P1-7) activates intercom from microphone path 1 and 2  BOTH MIKES DISABLED: Input /PTT1 (Pin P1-17) activates transmission only from microphone path 1  Input /PTT2 (Pin J1-5)  activates transmission only from microphone  path 2 Input /IC (Pin P1-7) activates intercom only from microphone path 1  "OUTPUTS" HDPH 1 ENABLED  Audio available on headphone 1 output (Pins P1-2/P1-3) HDPH 1 DISABLED  No audio is available on headphone 1 output. HDPH 2 ENABLED Audio is available on headphone 2 output (Pins P1-20/P1-22), speaker not available. HDPH 2 DISABLED  No audio available on headphone 2 output, speaker not available. SPEAKER ENABLED  Audio is available on speaker (Pins P1-1/P1-14), headphone 2 not available NONE  No audio on headphone 2 output or speaker output. Note: Menu available on primary controller.  Displayed only if MIKE_SW input (Pin J1-24) has inactive state.  Display Contents Description  "STD1 MIKE SENS": The sensitivity of standard microphone 1, "STD 1 MIKE SENS", input is adjustable within the range 9...1500 mV by turning the "ROTARY ENCODER".
Installation   Configuration Setup  62 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Display Contents Description 20 dB 150 mVVUSTD1 MIKE SENS  Note: This page is only displayed if : Standard Mike 2 input is selected in IN/OUT CFG1 and MIKE_SW input pin status is [Inactive]  or  Standard Mike 2 input is selected in  IN/OUT CFG2 and MIKE_SW input pin status is [Active]. The factory setting is 110 mV.  The VU meter displays the current signal level on the audio input and also displays the highest signal value for the last 3 seconds.  When speaking normally into the microphone the bar graph should remain within the recommended predefined range Note: Adjust the microphone sensitivity by keeping the cockpit noise suppression as high as possible, this will ensure correct modulation.  If the sensitivity is adjusted to a smaller value (e.g. 10 mV) the cockpit noises may become louder than for a higher adjustment (e.g. 100 mV).  Otherwise, adjusting the sensitivity to a very high value (e.g. 1000 mV), the cockpit noise is very much reduced, but the modulation of the transmitter might be not sufficient.  The installer shall perform a communication check after modification of this parameter. Recommended is to perform this check with and without a running engine.  Note: Menu available on primary controller.  For installations with high interferences it is recommended to use sensitivity level 27...1500 mV.
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 63 Display Contents Description  "STD2 MIKE SENS": The sensitivity of standard microphone 2 input can be adjusted in range from 9...1500 mV by turning the "ROTARY ENCODER". 20 dB 150 mVVUSTD2 MIKE SENS  Note: This page is only displayed if : Standard Mike 2 input is selected in  IN/OUT CFG1 and MIKE_SW input pin status is [Inactive]  or  Standard Mike 2 input is selected in IN/OUT CFG2 and MIKE_SW input pin status is [Active]. The default setting is 110 mV. VU meter displays current value of audio level from standard microphone input 2 and displays the highest value of active audio level recorded during last 3 seconds. Correct sensitivity is achieved when you are speaking normally into the microphone, this is confirmed by the "Hold max level bar" remaining in "Recommended Range". Note: The microphone sensitivity shall be adjusted to achieve a correct modulation by keeping the cockpit noise suppression as high as possible. If the sensitivity value is very small (e.g. 10 mV) more cockpit noise will be heard than if the sensitivity value is set to a higher level (e.g. 100 mV). Alternatively if the sensitivity value is very high (e.g. 1000 mV) the cockpit noise will significantly be reduced but the modulation of the transmitter may not be sufficient. After modifying this parameter a communication check shall be done by the installer. It is recommended to perform this communication check with and without engine running. Note: Menu available on primary controller. For installations with high interference it is recommended to use sensitivity level 27...1500 mV.  "STD3 MIKE SENS": The sensitivity of standard microphone 3 Input can be adjusted in range from 9...1500 mV by turning the "ROTARY ENCODER". 20 dB 150 mVVUSTD3 MIKE SENS  Note: This page is only displayed if : Standard Mike 3 input is selected in IN/OUT CFG1 and MIKE_SW input pin status is [Inactive]  or  Standard Mike 3 input is selected in IN/OUT CFG2 and MIKE_SW input pin status is [Active]. The default setting is 110 mV. VU meter displays current value of audio level from standard microphone input 3 and displays the highest value of active audio level recorded during last 3 seconds. Correct sensitivity is achieved when you are speaking normally into the microphone, this is confirmed by the "Hold max level bar" remaining in "Recommended Range". Note: The microphone sensitivity shall be adjusted to achieve a correct modulation by keeping the cockpit noise suppression as high as possible. If the sensitivity value is very small (e.g. 10 mV) more cockpit noise will be heard than if the sensitivity value is set to a higher level (e.g. 100 mV). Alternatively if the sensitivity value is very high (e.g. 1000 mV) the cockpit noise will significantly be reduced but the modulation of the transmitter may not be sufficient. After modifying this parameter a communication check shall be done by the installer. It is recommended to perform this communication check with and without engine running. Note: Menu available on primary controller. For installations with high interferences it is recommended to use sensitivity level 27...1500 mV.
Installation   Configuration Setup  64 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Display Contents Description  "DYN MIKE SENS": The sensitivity of the Dynamic Mike, "DYN MIKE SENS", input is adjustable within a range of 0.5...25 mV by turning the "ROTARY ENCODER".  17 dB 3.5 mVVUDYN MIKE SENS  Note: This page is only displayed if : Dynamic input is selected in  IN/OUT CFG1 and MIKE_SW input pin status is [Inactive]  or  Dynamic Mike input is selected in IN/OUT CFG2 and MIKE_SW input pin status is [Active]. The factory setting is 3.5 mV.  When speaking normally into the microphone the bar graph should remain within the recommended predefined range Note: The microphone sensitivity shall be adjusted to achieve a correct modulation by keeping the cockpit noise suppression as high as possible.  If the sensitivity is adjusted to a smaller value (e.g. 1 mV) the cockpit noises may become louder than for a higher adjustment (e.g. 25 mV).  Otherwise, adjusting the sensitivity to a very high value (e.g 25 mV), the cockpit noise is significantly reduced but the modulation of the transmitter may not be sufficient. The installer shall perform a communication check after modification of this parameter. Recommended is to perform this check with and without a running engine.  Note: Menu available on primary controller. For installations with high interferences it is recommended to use sensitivity level 2...25 mV.  "SPKR VOL SRC": One of the three following options may be selected for speaker volume source, "SPKR VOL SRC", by pressing  the "STO" button: SPKR VOL SRCRY CHRY CH  PRIMARY CH  If "PRIMARY CH" is selected the speaker volume will be adjustable by AR6201-(X0X).  SECONDARY CH  If "SECONDARY CH" is selected the speaker volume will be adjustable by RCU6201.  BOTH  If "BOTH" is selected the speaker volume will be adjustable by the arithmetic average value from AR620X and RCU6201.  Note: Menu available on primary controller. If optional second controller (RCU6201) is not available then SPKR VOLUME SOURCE shall be set to the PRIMARY CH  "SQUELCH THR": The noise squelch threshold "SQUELCH THR" is adjustable within a range of 6...26 by turning the "ROTARY ENCODER".  6SQUELCH THR  Minimum Adjustment of 6 means:  Weak RF signals can trigger the Squelch threshold and the voice signal might be low combined with a noisy background.  Maximum adjustment of 26 means:  Only strong RF signals will trigger the Squelch threshold. The voice signal will be audible very clear with very low background noise. Weak RF signals may not trigger the Squelch threshold and therefore the audio may not be heard by the pilots.  Note: Adjustment of the "SQUELCH THR" is available via the user menu at any time.
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 65 Display Contents Description Note: Menu available on primary controller.  "SCAN HOLD TIME": The "SCAN HOLD_TIME" is adjustable within the range of 1...60 seconds by turning the "ROTARY ENCODER".  1SCAN HOLD TIME  The default factory setting is 1. Note: Menu available on primary controller. For normal airborne operation it is recommended to leave the setting at 1.  "SIDETONE ATT": The sidetone attenuation "SIDETONE ATT" is adjustable within the range 0…12 dB by turning the "ROTARY ENCODER".  6SIDETONE ATT   The attenuation relates to the intercom volume.  0dB =  sidetone as loud as intercom signal.  12dB =  sidetone signal 12 dB less than the intercom signal.   Example: If the intercom volume is set to a very low value, then the sidetone volume will be reduced in relation to the intercom volume, irrespective of the sidetone value. The "SIDETONE ATT" parameter is an additional attenuation of the sidetone signal in transmit mode.  Note: Menu available on primary controller.  "ERASE CHN MEM": The 620X transceiver provide two databases to store up to 99 VHF frequencies identified by channel numbers (CH01 to CH99).  Both data bases, the "User Channels Database" and "Last Channels Database" can be erased. NOYESERASE CHN MEM   To erase the data bases; 1. Select "YES" via the "ROTARY ENCODER"  2. Press the "STO" push-button to confirm the selection.  Note: Menu available on primary controller.
Installation   Configuration Setup  66 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Display Contents Description  "ERASE FRQ LAB": The 620X transceiver provides a third database, "FRQUENCY LABELS DATABASE", containing 99 text labels of max 10 characters each. Text labels can be assigned to any of the frequencies (CH01 to CH99), the labels are stored manually. The "LABELS DATABASE" can be erased. NOYESERASE FRQ LAB  To erase the data base; 1. Select "YES" via the "ROTARY ENCODER"  2. Press the "STO" push-button to confirm the selection.  Note: Menu available on primary controller.  "FAIL LIST": This page automatically stores and displays information from all failures that occur during operation of the 620X. Used for trouble shooting and failure isolation.  P_NVRAM TEST 0P_INTERNAL IC 0P_RXS LOCK 0P_RECEIVER 0P_SUPP BLOCK 0P_OVER TEMP 0C_INTERNAL IC 0C_RXS LOCK 0C_TXS LOCK 0C_TX POWER 0C_SUPP BLOCK 0C_TX OVERLOAD 0C_OVER TEMP 0C_STUCK PTT 0FAIL LIST  1. The display can only show 4 monitored failures types (more are available). 2. Move the slide bar via the "ROTARY ENCODER" To view additional failures. 3. "0" means no failure were detected and stored. 4. "1" means that a failure was detected once or several times and stored.  Note: Menu available on primary controller.  "ERASE FAIL LIST": To erase all stored failures. NOYESERASE FAIL LIST  1. Selecting "YES" via the "ROTARY ENCODER". 2. Press the "STO" push-button to confirm. Erasing the failure list should not be undertaken by the installer. The failure list will normally be deleted by factory or maintenance shop after a repair is completed Note: Menu available on primary controller.
  Installation Configuration Setup  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 67 Display Contents Description  "RECALL DEF:": The factory default settings are the settings of the device when it left the factory after production. NOYESRECALL DEF.  To restore the factory settings; 1. Select "YES" via the "ROTARY ENCODER". 2. PRESS the "STO" push-button to confirm. Restoring the factory default settings will overwrite all previous and customized configuration settings! Note: Menu available on primary controller.
Installation   Factory Default Settings  68 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.9. Factory Default Settings  Enabled  Disabled     Selected     De-Selected Setting name Value DEVICE INFO  DIMMING INPUT NONE BRIGHTNESS 50% MEMORY OPTIONS  CHANNEL STORE  STORE LAST CHANNEL  MDE PAGES  STANDBY FREQUENCY   BATTERY VOLTAGE   CHANNEL MEMORY  LOW BATT THR 10.5 V AR6201-(X2X)  21.0 V AR6201-(X1X) CONFIG  TANDEM   AUX_IN   AUTO ISOL IN TX   SCAN BEEP   FREQ CHANGE BEEP   SWAP MIKE IC  IN/OUT CFG1 MICROPHONE 1  STD 1 MIKE  STD 2 MIKE  STD 3 MIKE  DYN MIKE  NONE MICROPHONE 2  STD 1 MIKE  STD 2 MIKE  STD 3 MIKE  DYN MIKE  NONE MIC ACTIVATION  BOTH MIKES OUTPUTS  HEADPHONE 1  HEADPHONE 2  SPEAKER  NONE
  Installation Factory Default Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 69 Setting name Value IN/OUT CFG2 MICROPHONE 1  STD 1 MIKE  STD 2 MIKE  STD 3 MIKE  DYN MIKE  NONE   MICROPHONE 2  STD 1 MIKE  STD 2 MIKE  STD 3 MIKE  DYN MIKE  NONE MIC ACTIVATION  BOTH MIKES OUTPUTS  HEADPHONE 1  HEADPHONE 2  SPEAKER  NONE  STD1 MIKE SENS 119 mV 119 mV 3.5 mV STD2 MIKE SENS DYN MIKE SENS SPKR VOL SRC  PRIMARY CH  SECONDARY CH  BOTH SQUELCH THR 12 SCAN HOLD TIME 1 SIDETONE ATT 6 ERASE CHANNEL MEM NOYES ERASE FREQUENCY LABELS NOYES FAIL LIST   ERASE FAIL LIST NOYES RECALL DEF. NOYES  visible depending on MIKE configuration of external MIKE Switch
Installation   Wiring Diagrams and Settings  70 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10. Wiring Diagrams and Settings    Installation of the unit varies according to aircraft and equipment design. It is therefore only possible to provide general guidelines in this section.  2.10.1. Single Seat Glider 2.10.1.1. Configuration Setup  Sub-Menu Function: / Selection "SPKR VOLUME SOURCE PRIMARY CH "IN/OUT CFG1":  "MICROPHONE 1": NONE "MICROPHONE 2": DYN_MIKE "BOTH MIKES": Enabled "HEADPHONE 1": Enabled "SPEAKER": Enabled  With /MIKE_SW not connected (/MIKE_SW input is set to Inactive state) it is only necessary to configure IN/OUT CFG1. If only headphone(s) are used, SPEAKER can be disabled by selecting NONE. If only speaker is used, disable HDPH 1.  17 dB 3.5 mVVUDYN MIKE SENS  Adjust DYN MIKE SENS to proper level TANDEMAUX INPUTAUX AUTO MUTEAUTO ISOL IN TXCONFIGURATION  If you want to use an auxiliary input we recommend to configure AUX AUTO MUTE In CONFIG menu set: AUX IN – ENABLE AUX AUTO MUTE - ENABLE "IN/OUT FG2" N/A Remarks Permanent speaker sign is visible on LCD screen. VOX operation suppressed.
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 71 2.10.1.2. Wiring Diagrams Single Seat Glider J3J1P1AA12 1221 212423 232412 1211 1124 2413 1325 2523 2310 1014 147 716 1617 17332 25 56618 18889 921 2120 2019 194415 1522 221 1ANTENNA/EXT_SOILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD1_LOILL_LO/MIKE_SWD_GNDD_GNDP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAFrequency Exchange(Remote Flip-Flop)optionalAWG20RelaxedEnergized7.5 A +-AWG20Battery12 VSwitched supplySPEAKER4 OhmAWG20PTTAuxiliary Audio InputoptionalMICROPHONEDynamic MikePJ055Earphone PilotNote: mount the jacks (earphone)isolated from aircraft frame Figure 2-19: Wiring for Single Seat Glider  Note: Frequency exchange switch and switched supply relay are optional
Installation   Wiring Diagrams and Settings  72 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.1.3. Wiring Diagrams Single Seat Glider 5-pol DIN Jack J3J1P1AA12 1221 212423 232412 1211 1124 2413 1325 2523 2310 1014 147 7551133224416 1617 17332 25 56618 18889 921 2120 2019 194415 1522 221 1ANTENNA/EXT_SOILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD1_LOILL_LO/MIKE_SWD_GNDD_GNDP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAFrequency Exchange(Remote Flip-Flop)optionalAWG207.5 A +-AWG20Battery12 VSPEAKER4 OhmAWG20PTTPHONEAuxiliary Audio InputConnector Wiring sideoptionalMICROPHONEDynamic Mike Figure 2-20: Wiring for Single Seat Glider (5-pol DIN Jack) Note: Frequency exchange switch is optional
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 73 2.10.2. Twin Seat Motor Glider 2.10.2.1. Configuration Setup Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1" (/MIKE_SW open): "MICROPHONE 1"  :  STD_1 MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Disabled "IN/OUT CFG2" (/MIKE_SW closed): "MICROPHONE 1"  :  NONE "MICROPHONE 2"  :  DYN_MIKE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Enabled Remarks The external switch (connected to pin J1-24 /MIKE_SW) has the following functions: Open:  • Standard microphone is selected. • Speaker is disabled.  • Intercom via VOX is possible.  Closed:  • Dynamic microphone is selected.  • Speaker is enabled.  • No Intercom via VOX is possible. • Permanent speaker sign is visible on LCD screen.
Installation   Wiring Diagrams and Settings  74 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.2.2. Wiring Diagram Twin Seat Motor Glider J3J1P1AA12 1221 212423 232412 1211 1124 2413 1325 2523 2310 1014 147 716 1617 17332 25 56618 18889 921 2120 2019 194415 1522 221 1ANTENNA/EXT_SOILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD1_LOILL_LO/MIKE_SWD_GNDD_GNDP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAFrequency Exchange(Remote Flip-Flop)optionalStandard MikeSPEAKER OffDynamic MikeSPEAKER OnAWG207.5 A +-AWG20SUPPLY14 V / 28 VSPEAKER 28 OhmSPEAKER 18 OhmAWG20Manual Intercom (optional)Intercom OffPilotIntercom OnIntercom OffCopilotIntercom OnPTT PilotPT CopilotEarphone PilotPJ055Earphone CopilotPJ055PJ068Standard MikePilotPJ068Standard MikeCopilotAuxiliary Audio InputNote: mount the jacks(earphone&mike) isolated from aircraft frameoptionalMICROPHONEDynamic Mike PilotMICROPHONEDynamic Mike Copilot Figure 2-21: Wiring for Twin Seat Motor Glider
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 75 2.10.3. General Aviation (GA) Aircraft  2.10.3.1. Configuration Setup (using Standard Microphones) Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1" (/MIKE_SW open):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Disabled "HEADPHONE 1"  :  Enabled "SPEAKER"     :  Disabled "IN/OUT CFG2" (/MIKE_SW closed):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Disabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Enabled Remarks The external switch (connected to pin J1-24 /MIKE_SW) has the following functions: Open:  • Speaker is disabled,  • Intercom via VOX is possible.  Closed:  • Speaker is enabled  • No intercom via VOX is possible • Permanent speaker sign is visible on LCD screen.  • The standard microphone input is selected regardless of the position of the external switch.
Installation   Wiring Diagrams and Settings  76 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.3.2. Wiring Diagram General Aviation GA Using Standard Microphones J3J1P1AA12 1221 212423 232412 1211 1124 2413 1325 2523 2310 1014 147 716 1617 17332 25 56618 18889 921 2120 2019 194415 1522 221 1ANTENNA/EXT_SOILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD1_LOILL_LO/MIKE_SWD_GNDD_GNDP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAFrequency Exchange(Remote Flip-Flop)optionalSPEAKER OffSPEAKER OnAWG207.5 A +-AWG20SUPPLY14 V / 28 VDimming Control14 V / 28 VGNDSPEAKER4 OhmAWG20Manual Intercom (optional) Intercom OffIntercom OnPTTEarphone PilotPJ055Earphone CopilotPJ055PJ068Standard MikePilotPJ068Standard MikeCopilotAuxiliary Audio InputNote: mount the jacks(earphone&mike) isolated from aircraft frameoptional Figure 2-22: Wiring for Usage of Standard Hand Mikes, Earphones and Speaker
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 77 2.10.4. Individual Dual Headset Configuration (two IC Circuit) 2.10.4.1. Configuration Setup Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1" (/MIKE_SW open):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  STD2_MIKE "BOTH MIKES"   :  Disabled "HEADPHONE 1"  :  Enabled "HEADPHONE 2"  :  Enabled "SPEAKER"    :  Disabled The standard microphone remains selected for both configurations "IN/OUT CFG2" (/MIKE_SW closed):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  STD3_MIKE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Disabled "SPEAKER"    :  Enabled Remarks The external switch (connected to pin J1-24 /MIKE_SW) has the following functions:  Open:  • Headset 1 for pilot selected (STD1) • Headset 2 for co-pilot selected (STD2) • Speaker is disabled,  • Intercom via VOX is possible.  Closed:  • Headset 1 selected (STD1) • Headset 2 disconnected (STD2) • Hand mike selected (STD3) • Speaker is enabled  • No intercom via VOX is possible  •  If PTT is active then speaker is muted.
Installation   Wiring Diagrams and Settings  78 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.4.2. Wiring Diagram Individual Dual Headset Configuration - two IC Circuit  ANTENNAAWG207.5 A +-AWG20AWG20Manual Intercom (optional)SPEAKER4 OhmSUPPLY14 V / 28 VSPEAKER OffSPEAKER OnPTT CopilotFrequency Exchange(Remote Flip-Flop)optionalIntercom OffPilotIntercom OnIntercom OffCoPilotIntercom OnPTT PilotPTT Hand MikeEarphone PilotPJ055Earphone CopilotPJ055PJ068Standard Mike PilotPJ068Standard Mike CopilotPJ068Standard Mike HandmikeAuxiliary Audio InputNote: mount the jacks (earphone&mike)isolated from aircraft frameoptionalJ3J1P1AA12 1221 215 52423 232412 1211 1124 2413 1325 2523 2310 1014 147 716 1617 17332 25 56618 18889 921 2120 2019 194415 1522 221 1ANTENNA/EXT_SO/PTT2ILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD1_LOILL_LO/MIKE_SWD_GNDD_GNDP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X) Figure 2-23: Dual wiring for Usage of Standard Hand Mikes, Earphones and Speaker
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 79 2.10.5. Twin Seat with AR620X Tandem Configuration 2.10.5.1. Configuration Setup Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1" (/MIKE_SW open):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Disabled If only headphone(s) are used, SPEAKER can be disabled by selecting NONE. If only speaker is used, HDPH 1 can be disabled. The standard microphone remains selected for both configurations "IN/OUT CFG2" (/MIKE_SW closed):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Enabled Remarks The external switch (connected to pin J1-24 /MIKE_SW) has the following functions:  Open:  • Headset 1 for pilot selected • Headset 2 for co-pilot selected • Speaker is disabled,  • Intercom via VOX is possible.  Closed:  • Headset 1 selected (STD1) • Headset 2 disconnected (STD2) • Hand mike selected (STD3) • Speaker is enabled  • No intercom via VOX is possible  •  If PTT is active then speaker is muted.
Installation   Wiring Diagrams and Settings  80 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.5.2. Wiring Diagram Twin Seat with AR620X Tandem Configuration AWG207.5 A 3 AAWG20AWG20AWG20+-SPEAKER4 OhmSUPPLY14 V / 28 VSPEAKER OffSPEAKER OnPTT CopilotManual Intercom (optional)PTT PilotIntercom OffPilotIntercom OnIntercom OffCopilotIntercom OnPTT Hand MikeFrequency Exchange(Remote Flip-Flop)optionalPJ055Earphone CopilotPJ055Earphone PilotPJ055Earphone Passenger1PJ068Standard Mike CopilotPJ068Standard Mike PilotPJ068Standard Mike HandmikeAuxiliary Audio InputNote: mount the jacks (earphone&mike)isolated from aircraft frameoptionalAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAJ3J1P1P1AA12 1221 215 524 2423 2312 1211 1124 248 815 157 714 1425 25 9 913 1311 112 21 14 45 51 114 147 716 1617 173 32 25 56 618 188 89 922 2220 2019 1915 1521 214 423 2310 1013 1325 25ILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD_LOILL_LOP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALANTENNA/EXT_SO/PTT2/MIKE_SWD_GNDD_GNDRX1+RX1-TX1+TX1-/ONTX0_422+TX0_422-RX0_422+RX0_422-GND/EXT_ONSUPP_INRCU6201-(X1X) Figure 2-24: Wiring for Twin Seat with AR6201 Tandem Configuration
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 81 2.10.6. Aircraft with four Seats (no TANDEM) 2.10.6.1. Configuration Setup Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1" (/MIKE_SW open):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  STD3_MIKE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Disabled "SPEAKER"    :  Enabled  If only headphone(s) are used, SPEAKER can be disabled by selecting NONE. If only speaker is used, HDPH 1 can be disabled. The standard microphone remains selected for both configurations "IN/OUT CFG2" (/MIKE_SW closed):  "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  STD2_MIKE "BOTH MIKES" :    Disabled "HEADPHONE 1"  :  Enabled "HEADPHONE 2"  :  Enabled "SPEAKER"    :  Disabled Remarks The external switch (connected to pin J1-24 /MIKE_SW) has the following functions:  Open:  • Headset 1 and 2 for pilot and co-pilot selected • Headset 3 and 4 for passengers selected • Speaker is disabled,  • Intercom via VOX is possible.  Closed:  • Headset 1 and 2 for pilot and co-pilot selected • Headset 3 and 4 disconnected • Hand mike selected (STD3) • Speaker is enabled  • No intercom via VOX is possible  • If PTT is active then speaker is muted.
Installation   Wiring Diagrams and Settings  82 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.6.2. Wiring Diagram Aircraft with four Seats - no TANDEM AWG207.5 AAWG20AWG20+-SPEAKER4 OhmSUPPLY14 V / 28 VSPEAKER OffSPEAKER OnISOL OffISOL OnPTT CopilotManual Intercom (optional)PTT CopilotIntercom OffPilotIntercom OnIntercom OffCopilotIntercom OnPTT Hand MikeFrequency Exchange(Remote Flip-Flop)optionalPJ055Earphone PilotPJ055Earphone CopilotPJ055Earphone Passenger2PJ055Earphone Passenger1PJ068Standard Passenger1PJ068Standard Passenger2PJ068Standard Mike CopilotPJ068Standard MikePilotPJ068Standard Mike HandmikeAuxiliary Audio InputNote: mount the jacks (earphone&mike)isolated from aircraft frameoptionalAR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAJ3J1P1AA12 1221 215 524 2423 2320 2012 1211 1124 241 114 147 716 1617 173 32 25 56 618 188 89 922 2220 2019 1915 1521 214 423 2310 1013 1325 25ILL_HISPK_HISPK_LO/ICAGC_OUT/PTT1HDPH1_BHDPH1_AHDPH2_BHDPH2_AMIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_HIMIKE_STD_LOILL_LOP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALANTENNA/EXT_SO/PTT2/MIKE_SWD_GNDD_GND/ISOL Figure 2-25: Wiring for Aircraft with Four Seats (no TANDEM)
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 83 2.10.7. Installation with RT6201 and RCU6201 RT6201 with primary controller RCU6201 can be used in all presented  installation wirings. RT6201 with RCU6201 replace a AR620X. The connection between RT6201 and RCU6201 is shown in the wiring diagram below.   2.10.7.1. Wiring Diagram with RT6201 and RCU6201 ANTENNA7.5 A3 AAWG20AWG20Frequency Exchange(Remote Flip-Flop)optionalJ3J1P1P1ANTENNA/ONRX2+RX2-TX2+TX2-/EXT_ON/EXCH_CHTX0_422+TX0_422-RX0_422+RX0_422-GNDSUPP_INAA24 2412 1211 1113 1325 25 13 1315 151 12 24 45 59 911 1125 2510 103 32 299RT6201-(X1X) / RT6201-(X2X)RCU6201-(X1X)P_SUPPP_SUPP/PWR_EVALP_SUPP_GNDP_SUPP_GND+-SUPPLY14 V / 28 V Figure 2-26 Wiring for RT6201 with RCU6201 as Primary Controller
Installation   Wiring Diagrams and Settings  84 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.8. Aircraft with Intercom System 2.10.8.1. Configuration Setup Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1": "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Disabled "IN/OUT FG2" "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Enabled Remarks The same configuration applies for balanced and unbalanced wiring.
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 85 2.10.8.2. Wiring Diagram Aircraft with Intercom System unbalanced  AR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAJ3J1P1ANTENNA/EXT_SOD_GND/MIKE_SWD_GNDHDPH1_BHDPH1_AP_SUPPP_SUPP_GNDP_SUPP_GNDILL_HIILL_LOSPK_HISPK_LO/ICAGC_OUT/PTT1P_SUPP/PWR_EVALAA23 2325 2510 101 114 147 716 1612 1221 2123 2317 1712 1211 1124 243 32 25 56 618 18889 92222202019 19151521MIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD_LOMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_INHDPH2_BHDPH2_A2144131324 24+-SUPPLY14 V / 28 VIntercom SystemAWG207.5 AAWG20PIN NPIN NPIN NPIN NPIN N Figure 2-27: Wiring for Aircraft with Intercom System (unbalanced)
Installation   Wiring Diagrams and Settings  86 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.8.3. Wiring Diagram Aircraft with Intercom System Balanced  AR6201-(X1X) / AR6203-(X1X)AR6201-(X2X) / AR6203-(X2X)ANTENNAJ3J1P1ANTENNA/EXT_SOD_GND/MIKE_SWD_GNDHDPH1_BHDPH1_AP_SUPPP_SUPP_GNDP_SUPP_GNDILL_HIILL_LOSPK_HISPK_LO/ICAGC_OUT/PTT1P_SUPP/PWR_EVALAA23 2325 2510 101 114 147 716 1612 1221 2123 2317 1712 1211 1124 243 32 25 56 618 18889 92222202019 19151521MIKE_DYN_LOMIKE_DYN_HIMIKE_STD1_HIMIKE_STD_LOMIKE_STD2_HIMIKE_STD3_HILINE_OUTAF_AUX_IN_LOAF_AUX_IN_INHDPH2_BHDPH2_A2144131324 24+-SUPPLY14 V / 28 VIntercom SystemAWG207.5 AAWG20Note:Optional grounging to PIN13,if grounding of shields is neededon both cable ends.PIN NPIN NPIN NPIN NPIN NPIN NPIN N Figure 2-28: Wiring for Aircraft with Intercom System (balanced)
  Installation Wiring Diagrams and Settings  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 87 2.10.9. Twin Seat with RT6201 Tandem Configuration 2.10.9.1. Configuration Setup Sub-Menu Function: / Selection "SPKR VOLUME SOURCE BOTH "CONFIGURATION" "SWAP MIKE IC"  :  Disabled "IN/OUT CFG1" (/MIKE_SW open): "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"     :  Disabled  If only headphone(s) are used, SPEAKER can be disabled by selecting NONE. If only speaker is used, HDPH 1 can be disabled. The standard microphone remains selected for both configurations "IN/OUT CFG2" (/MIKE_SW closed): "MICROPHONE 1"  :  STD1_MIKE "MICROPHONE 2"  :  NONE "BOTH MIKES"   :  Enabled "HEADPHONE 1"  :  Enabled "SPEAKER"    :  Enabled Remarks The external switch (connected to pin J1-24 /MIKE_SW) has the following functions:  Open:  • Headset 1 for pilot selected • Headset 2 for co-pilot selected • Speaker is disabled,  • Intercom via VOX is possible.  Closed:  • Headset 1 selected (STD1) • Headset 2 disconnected (STD2) • Hand mike selected (STD3) • Speaker is enabled  • No intercom via VOX is possible  •  If PTT is active then speaker is muted.
Installation   Wiring Diagrams and Settings  88 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.10.9.2. Wiring Diagram Twin Seat with RT6201 Tandem Configuration  ANTENNA7.5 A3 A3 A-+AWG20AWG20 SUPPLY14 V / 28 VPTTFrequency Exchange(Remote Flip-Flop)optionalFrequency Exchange(Remote Flip-Flop)optionalEarphonePJ055Standard Mike PilotPJ068PTTEarphonePJ055Standard Mike PilotPJ068J3J1J1P1P1P1ANTENNA/ONRX2+RX2-TX2+TX2-RX1+RX1-TX1+TX1-D_GND/EXT_ON/EXCH_CHTX0_422+TX0_422-RX0_422+RX0_422-GNDSUPP_IN/EXT_ON/EXCH_CHTX0_422+TX0_422-RX0_422+RX0_422-GNDSUPP_IN/PTT1HDPH1_BHDPH2_A/PTT2HDPH2_BHDPH2_AMIKE_STD1_HIMIKE_STD2_HIMIKE_STD_LOP_SUPPP_SUPP_GNDP_SUPP_GNDP_SUPP/PWR_EVALAA24 2412 1211 1113 1325 2525 2523 2310 1014 147717 173 33 32 22 25 518 1888889 99 920 2015 1522 22RT6201-(X1X) / RT6201-(X2X)13 1315 151 12 24 45 59 911 11RCU6201-(X1X)13 1315 151 12 24 45 59 911 11RCU6201-(X1X)P1PRIMARYSECONDARY Figure 2-29: Wiring for Twin Seat with RT6201 Tandem Configuration  Note: Setup configuration only via Primary RCU
  Installation Predesigned Cable Harness  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 89 2.11. Predesigned Cable Harness 2.11.1. 1K065 for General Aviation 7654321 Figure 2-30: Cable harness 1K065   Connector 1 Dsub connector (to P1 unit connector) 2 Connector for PTT switch (see 7) 3 Power supply lines 4 2x Microphone, jack socket PJ68 5 2x Phone, jack socket PJ55 6 Audio input, jack socket 3.5 mm 7 PTT switch Order code see: "Accessories", page 30. 2.11.2. 1K062 (Open Cable Ends) The cable harness 1K062 has open cable ends, the basic construction is like type 1K065.  2.12. Retrofitting AR4201 with AR6201 In most cases, a retrofit of the AR4201 with an AR6201 will not cause any problems.  However, in a few cases differences may occur due to pin incompatibility.  Connecting the AR6201 to an AR4201 wiring will NOT damage the AR6201 or the aircraft installation.
Installation   Retrofitting AR4201 with AR6201  90 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.12.1. Pin Compatibility AR4201 - AR6201 Pin No. AR4201 Pin Name AR4201 Function AR6201 Pin Name AR6201 Function Full compatible P1-1  AF-ASYM Speaker output, unbalanced SPK_HI Speaker output, unbalanced Yes P1-2  AF-HI Headphone output, balanced HDPH1_A Headphone 1 output, balanced Yes P1-3  AF-LO Headphone output, balanced HDPH1_B Headphone 1 output, balanced Yes P1-4  AFAUX Auxiliary audio input, unbalanced AF_AUX_IN_HI Auxiliary audio input, unbalanced Yes P1-5  MIKE DYN Dynamic microphone input, high side, unbalanced MIKE_DYN_HI Dynamic microphone input, high side, balanced Yes P1-6  MIKE GROUND Ground for dynamic microphone, unbalanced MIKE_DYN_LO Dynamic microphone input, low side, balanced No P1-7 IC Intercom input IC Intercom input Yes P1-8  TEMS1 Input for temperature sensor MIKE_STD_LO Ground No P1-9  RXD RS232-serial-data-line MIKE_STD2_HI Standard microphone 2 input, high side, unbalanced  No P1-10 -ILLUMINATION Illumination, low side ILL_LO Illumination, low side Yes P1-11 +13.75 V Positive power supply P_SUPP Positive power supply Yes P1-12 +13.75 V Positive power supply P_SUPP Positive power supply Yes P1-13 GROUND Power supply return / Ground P_SUPP_GND Power supply return / Ground Yes P1-14 AF GND MIKE STD GND Ground SPK_LO Ground Yes P1-15 AFCU Normally not used in installation LINE_OUT Normally not used in installation No P1-16 AGC/AFWB Normally not used in installation AGC_OUT Normally not used in installation No P1-17 PTT Press to talk /PTT Press to talk Yes P1-18 MIKE STD1 Standard microphone input, high side, unbalanced MIKE_STD1_HI Standard microphone 1 input, high side, unbalanced Yes P1-19 CODE PIN Used for identification of the connection MIKE_STD3_HI Standard microphone 3 input, high side, unbalanced No P1-20 TEMS2 Headphone 2 HDPH2_A Headphone 2 output, balanced   No P1-21 GNDDATA Ground AF_AUX_IN_LO no Ground No P1-22 TXD RS232-serial-data-line HDPH2_B Headphone 2 output, balanced No P1-23 ILLUMINATION Illumination, high side ILL_HI Illumination, high side Yes
  Installation Retrofitting AR4201 with AR6201  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 91 Pin No. AR4201 Pin Name AR4201 Function AR6201 Pin Name AR6201 Function Full compatible P1-24 +13.75V SWITCHED Power on monitor Switched positive power supply. /PWR_EVAL Power on monitor, open collector output, conducting to GND for "On" No P1-25 GROUND Power supply return / Ground P_SUPP_GND Power supply return / Ground Yes  2.12.2. Dynamic Microphone Input Retrofitting an AR4201 with the AR6201 in a typical glider installation with a dynamic microphone is shown below:   Dy namic  Mike18658MIKE_STD_LOMIKE_DYN_LOMIKE_STD_HI65MIKE_DYN_HI818 Figure 2-31: AR6201 with wiring interface for AR4201  Connect the cable shielding to pin P1-6, which is the low side input for dynamic microphone. Because in AR6201 this input is balanced, the cable shield is no longer connected to ground (unlike it was with the AR4201). In most cases, it is not a problem.  If interference with the microphone signal does occur, it is recommended to carry out the following modification:  Connect Pin P1-6 with Pin P1-8 (the cable shield is grounded). See Figure.  Dy n a mic  Mike58186MIKE_STD_LOMIKE_STD_HIMIKE_DYN_LOMIKE_DYN_HI 56188  Figure 2-32: Modified dynamic microphone wiring interface for AR6201 2.12.3. Temperature Sensor The AR6201 has no temperature sensor input. Remove wire from pin P1-8 and pin P1-20. 2.12.4. RS232 Interface The AR6201 has no RS232 interface for remote control. Remove wire from pin P1-9 and pin P1-22.
Installation   Post Installation Tests  92 Transceiver Family 620X DV14307.03 Issue 04 March 2016 2.12.5. AFCU/AGC/AFWB Not used in aircraft installations, remove pins P1-15 and pin P1-16. 2.12.6. CPIN (if Installed) No influence in retrofit installation, please remove coding cap from the connector hole. 2.12.7. +13.75 V Switched (AR4201) - PWR_EVAL (AR6201) The AR6201 provides on pin P1-24 a low signal when the unit is switched on and a high impedance signal, when switched off.  Note: This is not compatible to the AR4201, which provided a positive power supply when switched on and high impedance when switched off. In cases where slave equipment needs to be switched ON/OFF in sync with the AR6201 connect a relay to pin P1-24. 2.13. Post Installation Tests Note: It is assumed that the "Configuration Setup"  (see  "Configuration Setup", page 53) has been done before the Post Installation Tests will be carried out.  Once the 620X  is installed, complete a test procedure to verify system functionality. Ensure compliance with authority required procedures. Refer to the installation order of the minor change document or use an own approved test protocol for VHF units. The following chapter  provides guidance for such tests.  2.13.1. Mechanical Installation and Wiring Check • Verify all cables are fixed securely and shields connected properly to signal ground.  • Check the movement of aircraft controls to verify there is no interference.  • Verify all screws are tight and the connectors on the rear side of the unit are secured. 2.13.2. Power Supply • Check the power supply lines and confirm correct polarity.  • Confirm that the aircraft power supply is within the specified limits, with and without a running engine. 2.13.3. Receiver / Transmitter Operation • Power up the 620X and tune it to a local station for a communication test.  • Verify that the receiver output produces a clear and readable audio and ask the local station for proper readability for the transmit signal of the 620X.  • Repeat this communication test with an airborne station within ≈ 20-40 NM (Nautical Miles). 2.13.4. Antenna Check • Check the VSWR (voltage standing wave ratio) over the complete frequency band (e.g. by using a VHF Reflection-Coefficient Meter).  The VSWR ratio should be less than 2:1 and is not acceptable when exceeding 3:1.  2.13.5. Interference Check • Check the 620X while engine is running and all other avionics/ electrical systems on the aircraft are powered, to verify that no significant interference exists.  • Check also that the 620X does not cause significant interference with other systems.  The installer´s standard test procedure may be used for the interference check and the table can be taken as a reference. Depending on the individual avionic systems installed in the aircraft, it might be necessary to extend the following checklist accordingly.
  Installation Post Installation Tests  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 93 Aircraft System  Function  OK NOT OK DME   Audio   Generators / Inverters   GPS System   Compass 1   ADF   VHF / NAV1 all channels   VHF / NAV 2 all channels   Marker Beacon   Motor(s)   Engine Instruments   Stormscope    Transponder   Air Data Computer   Autopilot and Servos     • Power the GPS and make sure that not less than 5 satellites are tracked.  • Check the interference between the VHF-COM and the GPS receiver (when activated in NAV mode).  • Select the following channels/frequencies on the 620X and on each frequency stay in TX and RX mode for at least 30 seconds.  • Verify that GPS integrity flag is always out of view.
Installation   Post Installation Tests  94 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Channel Frequency (MHz) 121.140 121.1416 121.150 121.1500 121.155 121.1500 121.160 121.1583 121.165 121.1666 121.175 121.1750 121.180 121.1750 121.185 121.1833 121.190 121.1916 121.200 121.2000 121.205 121.2000 121.210 121.2083 131.240 131.2416 131.250 131.2500 131.255 131.2500 131.260 131.2583 131.265 131.2666 131.275 131.2750 131.280 131.2750 131.285 131.2833 131.290 131.2916 131.300 131.3000 131.305 131.3000 131.310 131.3083  For the remaining avionic equipment repeat all interference checks during a flight and include all equipment not previously checked out on ground. A communication performance check in the low, mid and high frequency band of the 620X should be included.  • Verify the receiver output produces a clear and understandable audio output.  • Verify the transmitter by contacting another station and getting a report of reliable communications.  • Perform the range check with a station at least 100 m from your own position.  • Check the intercom function by talking into the microphone, while the engine is running at cruising rpm. You should hear yourself and/or your co-pilot loud and clear.  • Switch "ON" the squelch and check that the normal radio noise, without a present carrier signal, it will be constantly suppressed. The threshold of the squelch can be set in the user menu.  2.13.6. Flight Test Check It is highly recommended to perform flight test as final installation verification. The performance of the 620x may be verified by contacting a ground station at a range of at least 50 NM while maintaining an appropriate altitude and over all normal flight attitudes.  • Check the performance in the low, mid and high band frequencies.
  Installation Trouble Shooting  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 95 2.14. Trouble Shooting Problem Possible Reason  Proposed Solution No Intercom function.  (You can’t hear yourself when talking into the microphone). VOX is switched "OFF", or adjusted to a too high value. Adjust the VOX to a lower value. A value of "-15" is suitable in most cases. Refer to "Configuration Setup", page 53). The intercom volume adjusted to a too low value. Adjust the intercom volume to a higher value. A value of "37" produces already a quite loud intercom signal. Refer to" Configuration Setup", page 53). The sensitivity of the microphone input is not sufficient. The level is adjusted to a too high value. Adjust the sensitivity of the microphone input to a lower value. For most common avionic headsets a setting of 50…120 mV is sufficient. Refer to "Configuration Setup", page 53). VOX threshold is not adjustable. VOX is always off. VOX is inoperative, because speaker is on. Switch speaker to "OFF". Refer to "Configuration Setup", page 53). Too high cabin noise during intercom / transmit operation. The sensitivity of the microphone input is too sensitive. Adjust the microphone sensitivity to a higher value to ensure the cabin noise relatively reduces. Recheck transmit operation and/or Intercom function. Refer to "Configuration Setup", page 53). No Speaker output. Speaker is switched off  Switch Speaker "ON. Refer to "Configuration Setup", page 53). The noise suppression function of the squelch is not working.   (Receiver noise is always present). Some avionic (especially non ETSO/TSO approved avionic) can produce quite high electromagnetic interference, which is receiving by the AR6201-(). Reduce the interference emitted by the avionic around by improving shielding, distance or grounding. The interference may also been suppressed by adjusting the squelch to a higher value. Refer to "Configuration Setup", page 53). Note, that a higher value will cause a reduced sensitivity. Display shows Warning/Failure message. (LOW BATT, STUCK PTT, TX HOT, FAILURE)  Refer to "Warning and Failure Indications", page 113).
Installation   Continued Airworthiness  96 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Problem Possible Reason  Proposed Solution Antenna VSWR exceeds 3:1. Possibly caused by a defective, or insufficient counterpoise for the antenna.  Check for sufficient size of the counterpoise and make sure there is no mechanical defect on the antenna.  The impedance of the antenna cable deviates significantly from 50 Ω. Make sure the used antenna cable has 50 Ω impedance and the cable is not bend or kinked on its way from the radio to the antenna  Defective BNC connectors on the antenna cable. Check for proper crimp/solder work on the BNC connectors and rectify as far as necessary.   2.15. Continued Airworthiness The 620X family maintenance is defined as "on condition" only. No scheduled or regular maintenance of this product is required.  It is recommended to check the frequency accuracy of the airborne transceiver after 7 years.
  Operating Instructions Device Description  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 97 3. Operating Instructions In this chapter you can read about: 3.1. Device Description ...................................................................................................................... 97 3.1.1. Device Assignment ........................................................................................................... 97 3.1.2. Type Plate ......................................................................................................................... 97 3.2. Controls and Indicators ............................................................................................................... 99 3.3. Start-Up ..................................................................................................................................... 100 3.4. Receive and Transmit Mode ..................................................................................................... 100 3.4.1. Receive Mode ................................................................................................................. 100 3.4.2. Transmit Mode ................................................................................................................ 100 3.5. Frequency Selection Modes...................................................................................................... 101 3.5.1. Standard Mode ............................................................................................................... 101 3.5.2. Direct Tune Mode ........................................................................................................... 102 3.5.3. Channel Mode ................................................................................................................. 104 3.5.3.1. Select Channels .................................................................................................. 104 3.5.4. Frequency Storage Functions ......................................................................................... 105 3.5.4.1. Store .................................................................................................................... 105 3.5.5. Automatic Storage Function ........................................................................................... 106 3.5.5.1. Delete data: ......................................................................................................... 106 3.5.6. Scan Mode ...................................................................................................................... 107 3.6. SQUELCH ................................................................................................................................. 108 3.7. RX Field Strength Indication ..................................................................................................... 108 3.8. Channel Spacing Mode ............................................................................................................. 108 3.9. Auxiliary Audio Input ................................................................................................................. 109 3.10. Intercom Operation ................................................................................................................... 109 3.11. VOX & Speaker Operation ........................................................................................................ 110 3.12. Menus ........................................................................................................................................ 110 3.12.1. Intercom Menu ................................................................................................................ 110 3.12.2. User Menu ...................................................................................................................... 112 3.13. Warning and Failure Indications ............................................................................................... 113   The chapter "Operating Instructions"  in this  manual  contains general information and instructions to ensure safe operation of the VHF transceivers.  3.1. Device Description   In this section the figures for illustrating display content mainly show transceivers working in 8.33/25 kHz mixed mode. Dedicated pictures for 25 kHz mode are not explicitly shown (they differ only in number of digits for frequency). The HMI actions described in this section can be performed on primary controller or on optional secondary controller RCU6201.  The following graphics of the display content show the 8.33 kHz channel spacing for all possible operation modes.   3.1.1. Device Assignment • See page 33  3.1.2. Type Plate • See page 35 •    Switch OFF the device before starting or shutting down engines.
Operating Instructions   Device Description  98 Transceiver Family 620X DV14307.03 Issue 04 March 2016   A voice communication test shall be performed before starting the engine.  It should be noted that, if the communication test is carried out close to a ground station, the results may be positive even if the antenna cable is broken or short-circuited. In such a case, at a distance of 5 to 10 km and above, communication might not be possible.  • Speak always loud, clear and not too fast for optimal voice communication.  • Keep the microphone always close to the lips otherwise a special suppressing circuit in the VHF COM will not be capable to suppress normal cabin noise. • Use only microphones or headsets which are suitable for use in an aircraft.  o In aircraft made of wood, synthetic materials or in gliders or helicopters, incoming radiation can affect the integrated amplifier of the microphone (feedback), noticeable in the ground station by whistling and/or heavy distortion. If the power supply voltage drops below the "Low Battery Threshold"  (default value is 10.5 V), the "LOW BATTERY" message will appear each 3 seconds in the lower part of the display.   If the power supply voltage drops below 10 V the system enters power saving mode: • Speaker output of the transceiver is automatically switched "OFF" •  Speaker sign will no longer be presented on LCD display • The pilot must use headphones to continue listening.
  Operating Instructions Controls and Indicators  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 99 3.2. Controls and Indicators  AR620X and RCU6201 AR6203    Figure 3-1: Controls and indicators   Symbol Description Main Function 1  IC/SQL  (Intercom/Squelch) "Short press" during normal operation toggles the RX -SQL ON/OFF. "Long press" during normal operation activates Intercom Menu. 2  MDE  (Mode) "Short press" during normal operation changes the frequency selection mode. "Long press" during normal operation activates the user menu.  3  STO  (Store) "Short press" during normal operation activates storage procedure. 4  ↨/SCN  (Exchange/SCAN) "Short press" during standard mode, or scan mode toggles between preset and active frequency. "Long press" activates scan mode. 5  Power ON/OFF, Volume Knob Switches the transceiver ON/OFF and adjusts volume level of received signal. 6  Rotary encoder Turning "ROTARY ENCODER" changes the settings of several parameters (frequency, IC-volume, VOX, …). Pushing the "ROTARY ENCODER" toggles between the digits and acts as an enter key.   -8/25- Change of Channel Spacing Keeping the MOD and STO button pressed simultaneously longer than 2 seconds changes 8.33 to 25 kHz channel spacing and vice versa. 7  Display LCD: Liquid Crystal Display 8   Active frequency Only on the active frequency, transmitting is possible and receiving has priority, even in scan mode. Frequency tuning is not possible in standard mode. 9   Preset frequency Frequency tuning is possible in standard mode. In scan mode both frequencies, active and preset are in listening watch. If no receive signal is detected on the active frequency, receiving signals on the preset frequency will be audible, but will be muted as soon as a signal on the active frequency is detected.   The device detects a: "Long press": when pressing and holding down a key for at least 2 seconds. "Short press": any pressing below 2 seconds.
Operating Instructions   Start-Up  100 Transceiver Family 620X DV14307.03 Issue 04 March 2016 If any action by the user is invalid, the whole display inverting for a short time.  Symbols shown on the Display Symbol Function IC Intercom operation is active (triggered by VOX or external IC key)  Intercom operation via VOX is disabled TX The transceiver is in transmit operation SQL The squelch function is active, weak RX signals suppressed. SCAN Transceiver operates in scan mode STO The transceiver performs a storage operation. LOW BATT Battery below predefined low threshold 128.225 Inverted figures or letters on display ready to edit  Speaker on  3.3. Start-Up   Excessive pulses on the DC bus of the aircraft may cause damage on electrical circuits of any installed instrument. Do not switch ON the device during engine start or shutdown  • Turn "ON" the device by turning the volume knob clockwise. • During PBIT (Power-On Built In Test) the display indicates the message "WAIT", the software version of "Control Head" (CH) and the software version of "Core Module" (CM). • If the PBIT has detected error(s),"FAILURE" appears on the display (for details see chapter 3.13).  3.4. Receive and Transmit Mode 3.4.1. Receive Mode If /PTT1 and /PTT2 (Push To Talk) inputs are inactive, the transceiver remains in receive mode. In receive mode the headphone(s) outputs (if enabled) provide a mixed signal consisting of:  • Received signal from antenna,  • Intercom signal from intercom circuit one and two, • Signal from auxiliary input. In receive mode the speaker output (if enabled) provides a mixed signal consisting of: •  Received signal from antenna •  Signal from auxiliary input The signal from the auxiliary input been muted under certain conditions (For details refer to "Intercom Operation", page 109). The signal from intercom can be attenuated,  or muted, under certain conditions  (For details refer to "VOX & Speaker Operation", page 110).  3.4.2. Transmit Mode If /PTT input is active (PTT=Push To Talk key is pressed) the transceiver switches to transmit mode. Microphone(s) signals can modulate the transmitter. • PTT 1 input activates transmission from microphone path 1 • PTT 2 input activates transmission from microphone path 2 • If BOTH MIKES are active / enabled in the configuration setup, each input (PTT 1 or 2) activates the transmission from both microphone paths simultaneously. The "TX" symbol in the left upper corner of the display indicates the device is in transmit mode.
  Operating Instructions Frequency Selection Modes  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 101 118.005127.000TX In transmit mode several user actions such as changing frequency selection mode or channel spacing mode, which are normally allowed in receive mode, are blocked. (As an exception in standard mode the "Preset" frequency may still be changeable, even during transmission).  No intercom operation is possible in transmit mode. The sidetone (demodulated audio of the emitted signal) is available on the headphone output. The transmit mode automatically deactivates the speaker. Note: Transmit mode is automatically terminated (return to receive mode) after 120 seconds of continuous transmitting even if PTT is still pressed. In this case "STUCK PTT" is indicated (refer to page 113). For initiation of a new transmission, /PTT line needs first to become inactive.  3.5. Frequency Selection Modes Following frequency selection modes are available on AR620X and RCU6201: • Standard mode • Direct tune mode • Channel mode • Scan mode The  "Standard  Mode",  "Direct Tune Mode" and  "Channel Mode"  provide different user interfaces for convenient selection of the operating frequency. These three frequency selection modes are selectable by consecutive short pressing of "MDE"  key.  They appear in the following order: "Standard Mode",  "Direct Tune Mode"  "Channel Mode", "Standard Mode", and so on. When toggling between the three modes the active frequency always remains the same and active.  "SCAN Mode" is a sub-mode of standard mode and used for monitoring two frequencies at the same time. A 2 seconds press on "↕/SCN" key activates/deactivates the scan function. The availability of the modes depends on enabling or disabling in the "Configuration Settings".  3.5.1. Standard Mode Press the "MDE" key until the standard mode page appears. The standard mode page displays the active frequency in the top line and preset frequency in the bottom line. 118.005127.000ICSQL Changing the active frequency is not possible in standard mode (only available in direct tune mode) but changing the preset frequency is possible.
Operating Instructions   Frequency Selection Modes  102 Transceiver Family 620X DV14307.03 Issue 04 March 2016 Changing the preset frequency in standard mode: • Make a "short press" on the "ROTARY ENCODER" for modification of the 100 MHz digits.  Rotate the "ROTARY ENCODER" clockwise/counter clockwise to change the frequency in 1 MHz steps. 118.005128.000SQL • Make another "short press" on the "ROTARY ENCODER" for modification of the 100 kHz digits.  Rotate the "ROTARY ENCODER" clockwise/counter clockwise to change the frequency in 100 kHz steps. 118.005128.000SQL • Make another "short press" on the "ROTARY ENCODER" for modification of the 25/8.33 kHz digits.  Rotate the "ROTARY ENCODER" clockwise/counter clockwise to change the frequency in 25/8.33 kHz steps. 128.000SQL118.005  A short press of the "↨/SCN" key, exchanges active frequency to preset frequency and vice versa. If wanted, please press now the "STO" key to store the active frequency into the next vacant memory place of the user channels database.  Note: While the transceiver operates in transmit mode, the toggle function is disabled.  3.5.2. Direct Tune Mode Press the "MDE" key until the direct tune mode page appears.  ICSQL118.005BAT 13.5V  Note: The battery information is only displayed if BATTERY VOLTAGE in the configuration setup is selected. In direct tune mode, the active frequency appears in the top line. It can be edited by means of the "ROTARY ENCODER" following the procedure.
  Operating Instructions Frequency Selection Modes  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 103 Changing the active frequency when in direct tune mode: • Make a "short press" on the "ROTARY ENCODER" for modification of the 100 MHz digits.  Rotate the "ROTARY ENCODER" clockwise/counter clockwise to change the frequency in 1 MHz steps. ICSQL118.005 • Make another "short press" on the "ROTARY ENCODER" for modification of the 100 kHz digits.  Rotate the "ROTARY ENCODER" clockwise/counter clockwise to change the frequency in 100 kHz steps. ICSQL118.005 • Make another "short press" on the "ROTARY ENCODER" for modification of the 25/8.33 kHz digits.  Rotate the "ROTARY ENCODER" clockwise/counter clockwise to change the frequency in 25/8.33 kHz steps. ICSQL118.005 Notes:  The changes become active immediately Changing the active frequency is possible only when the transceiver is not transmitting.  If wanted, please press now the "STO" key to store the active frequency into the next vacant memory place of the user channels database.
Operating Instructions   Frequency Selection Modes  104 Transceiver Family 620X DV14307.03 Issue 04 March 2016 3.5.3. Channel Mode The channel mode shows data from User Channels Database (indicated by "CH"), or Last Channels Database (indicated by "LAST") and shows if applied a customized label (identifier) for the frequency (max. 10 characters).  The channel database provides storage of: • CH01 to CH99 and  • LAST 1 to LAST 9.  Note The functions "LAST" and Store/Restore are only available if this options are activated in "Configuration Settings" - "MEM OPTIONS". Note: If the device is operating in the 25 kHz mode a selection of an earlier stored 8.33 kHz channel is not possible. For selection of 8.33 kHz channels, the device must operate in 8.33 + 25 kHz mixed mode.  Press the "MDE" key the channel mode page appears.   By means of channel number stored frequencies can be selected. The top line shows the corresponding frequency  and the bottom line the customized  label (identifier) assigned to the frequency number.  If the active frequency has no assigned channel number the indication is "CH--".  ICSQL125.875CHTWR EDSB 01     ICSQL125.875LASTTWR EDSB 1  3.5.3.1. Select Channels Example:  With CH01 user channel shown on display: In order to select the channel number: • The first turn clockwise in channel mode provides navigation up user channels CH01 to CH99.  o Make a short press of the "ROTARY ENCODER", or: o Make one clockwise turn of the "ROTARY ENCODER". The channel number is now highlighted and the channel can be changed turning the "ROTARY ENCODER". At each step the receiver tunes immediately to the displayed frequency. • The first turn counter-clockwise will enter to the channel "LAST 1.  o The channel number is now highlighted and one of the nine last used channels is selectable by turning the "ROTARY ENCODER" either counter clockwise or clockwise. The  "LAST"  mode is left automatically after a 5 second timeout or can be deselected by repeated pressing of the "ROTARY ENCODER". When leaving the "LAST"  channel database and the last shown frequency is not stored in the User channel database, "CH__" appear on the display. Press "STO" to start the storage process. Leave Channel Mode: Press the "MDE" key the standard page appears.
  Operating Instructions Frequency Selection Modes  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 105 3.5.4. Frequency Storage Functions Start store function by pressing: •  "STO" key in "Standard Mode", "Direct Tune Mode" and "SCAN Mode". During this procedure, the display looks similar to the channel mode with one difference that "STO" appears on the left side of the display.  3.5.4.1. Store The transceiver provides two databases: • User channels database - provides 99 channels CH01 to CH99 to store frequencies with the possibility to apply a customized label (identifier) with max. 10 alphanumeric characters.  • Last channels database - automatically stores 9 last used frequencies with customized identifier if applied, easy to recall as LAST 1 to LAST 9. Any frequency can be assigned to any channel within the range from 118.000...136.9916 MHz by simply pressing the "STO" button. All 99 channels are editable. By entering the storage procedure, the device will first propose the next free channel for storing the active frequency. The label "FREE" appears together with the channel number, if the selected channel is vacant. A selected channel with an already stored frequency, has the label "USED". If the same frequency is stored a second time, then the existing data (frequency, label/identifier data) is offered to store. If the frequency has no label attached, ten underscore digits allows to insert a label. The cursor automatically appears on the first position. The data can be stored to: • Next free channel (offered from system). • A selected free channel. • A selected used channel (the existing data will be replaced).  STO CHFREE 09125.875 STO 09CHUSED125.875   STO_ _ _ _ _ _ _ _ _ _125.875 STOTWR EDSB _ _125.875  Label (Identifier) Data: By turning the "ROTARY ENCODER" characters can be selected. Selection works in both directions (example: A...Z0...9—/blankA"  by turning clockwise and vice versa by turning counter clockwise).  Each  "short press" on the "ROTARY ENCODER", the cursor is passed to the next position.  A short press of the "STO" key stores the label a long press of the "STO" key clears the currently edited label. After storing the transceiver returns back to the previous frequency selection mode. If no action occurs in label editing mode within 7 seconds, the transceiver returns to the previous frequency selection mode without storing the frequency and label information. Stored frequencies are recallable in Channel Mode (see "Channel Mode" page 104).
Operating Instructions   Frequency Selection Modes  106 Transceiver Family 620X DV14307.03 Issue 04 March 2016 3.5.5. Automatic Storage Function The transceiver stores 9 recently selected frequencies and updates the last channels database during operation in "Standard Mode", "Direct Tune Mode" and "Scan Mode".  When changing to a new active frequency, the previous active frequency is stored "LAST" in memory LAST 1. The frequencies previously located in LAST 1…LAST 8  are shifted to memory channels LAST 2…LAST 9. This algorithm ensures the last 9 used active frequencies are available. Last used frequencies "LAST" can be recalled in channel mode (see "Channel Mode" page 104). Note The function "LAST" and Store/Restore to channels are only available if this options are activated in "Configuration Settings" - "MEM OPTIONS". 3.5.5.1. Delete data:  The stored content in User Channel Database can only be deleted in "Configuration Settings". Please note the whole channel database will be reset.
  Operating Instructions SQUELCH  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 107 3.5.6. Scan Mode In Scan Mode the display shows both the active frequency on the top line and the preset frequency on the bottom line. The SCAN sign in the display indicates that scan function is active. 118.005127.000SQLSCAN In all frequency selection modes; • A long press of "↕/SCN" key activates the scan function and changes to STANDARD MODE if activated from CHANNEL or DIRECT TUNE mode. • A short press on the "MDE" key or a long press on "SCN" key terminates scan function. After leaving scan function, the device will remain in standard mode. The arrow sign "►" in front of the active frequency indicates that this frequency is audible. If both the active frequency and preset frequency simultaneously detect a signal, the active frequency (top) takes priority. The preset frequency then inverts and blinks.  127.000118.005SQLSCAN If selected in the configuration setup an audio notification "beep" tone becomes audible in addition to the blinking preset frequency to indicate the presence of an RX signal on the preset frequency. Reception on Preset Frequency in Scan Mode If the preset frequency detects a signal while no signal is present on the active frequency, the transceiver automatically switches over to the preset frequency.  The arrow sign now appears in front of the preset frequency and the signal is audible.  127.000118.005SQLSCAN  Note: Transmission always uses the active frequency, even if the monitored frequency is currently audible. If TX on the preset frequency is required, push the "↨/SCN" key to swap active and preset frequency.
Operating Instructions   SQUELCH  108 Transceiver Family 620X DV14307.03 Issue 04 March 2016 3.6. SQUELCH Independent of the selected operation menu, squelch can be toggled "ON" or "OFF" by a short press on "SQL/IC" key. • If the squelch function is active ("ON") the receivers noise is muted. • If the squelch is "OFF" the arrow sign "►" in front of the active frequency stay visible all the time and receiver noise will be audible as long as signal is receiving. 127.000118.005SQL 127.000118.005SQL Squelch "ON" Squelch "OFF"  In the user menu, the squelch threshold is adjustable to a convenient trigger level. See  "User Menu" page 112.  3.7. RX Field Strength Indication The field strength indicator, represented by triangle on the left upper corner of the corresponding frequency, will appear next to the active or preset frequency in all frequency selection modes. The field strength of an incoming signal relates to the measured RSSI level. The three levels displayed are: Weak Signal Strength Good Signal Strength Excellent Signal Strength RSSI passing squelch levels (empty triangle) -88 > RSSI > -80 dBm  (half-filled triangle) RSSI > -80 dBm  (fully filled triangle) 127.000118.005SQL 127.000118.005SQL 127.000118.005SQL  3.8. Channel Spacing Mode The transceiver provides two operation modes of frequency channel spacing, (8.33 and 25 kHz), selectable by means of pressing "STO" and "MDE" keys simultaneously for at least 2 seconds.  In 25 kHz mode, 5 frequency digits are shown. Only operating frequencies with a channel spacing of 25 kHz are selectable. If 8.33 kHz channels are not in use, this mode provides the advantage of faster tuning since skipping the 8.33 kHz frequency steps. In  8.33 kHz and 25 kHz mixed mode 6 frequency digits are shown. The transceiver tunes to all possible frequencies within the aviation VHF frequency band. The channel spacing and operating frequency is derived automatically from the selected and displayed frequency. 127.000118.000SQL   127.00118.00SQL 8.33 kHz channel spacing (left) / 25 kHz channel spacing (right)  Toggling between the frequency channel spacing modes is only available for AR-, RCU620X-(0XX) variants. The AR-, RCU620X-(1XX) variants provide operation in 25 kHz Mode only.
  Operating Instructions Auxiliary Audio Input  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 109 3.9. Auxiliary Audio Input The transceiver has a dedicated auxiliary audio input e.g. for MP3 player connection. With auxiliary input enabled in configuration setup, the auxiliary audio input signal mixing with the received signal from antenna (passing squelch) and the intercom signal (when activated). When intercom operates in ISOLATION mode, auxiliary audio input signal is audible on headphone 2 output, even if radio communication (transmission/receiving) is active. AUX AUTO MUTE function depends on the AUX INPUT, selectable via the CONFIGURATION page in the  configuration setup. This function automatically mutes the audio signal from the auxiliary audio input as long as the AR620X detects (based on squelch evaluation) a RX signal or the user deactivates the squelch manually. If this function is disabled the signal from the auxiliary audio input is permanently audible on the audio output, independently of the received signal or the squelch status. Automatic aux attenuation functionality controls the auxiliary audio input. The level of the auxiliary input signal attenuates if intercom is activated by VOX or by /IC discrete input. The auxiliary input signal reverts to its previous value after intercom deactivation. The attenuation value can be adjusted within the range from 0...40 dB. 3.10. Intercom Operation Intercom operation may be triggered automatically via VOX (with adjustable threshold) or externally via intercom switch.  The setting of VOX-threshold and intercom volume is accessible in the intercom menu, in tandem configuration on primary controller only. For a single block, the primary controller is the one directly connected to VHF transmitter. For a remote VHF transmitter the primary controller is the one connected to primary control interface.  VOX-threshold and intercom volume for the second intercom circuit are controllable from secondary controller RCU6201 (secondary controller is the one connected to secondary control interface).  The transceiver has two internal built in intercom circuits. Therefore, up to four headsets are connectable. Pilot and co-pilot connect to the first intercom circuit. When intercom is active, both microphone signals are mixed and amplified with each other and will be audible on both headphone outputs. This enables internal communication via headsets between both pilots. Passenger headsets are connecting to the second intercom circuit. ALL mode - Everyone connected to the intercom will hear all communications (pilots hear passengers and passengers hear pilots).  ISOL mode - Provides separate intercoms for the pilots (intercom circuit one) and the passengers (intercom circuit two). This allows pilots to communicate with each other, and air traffic, while the passengers are isolated. The passengers on the intercom circuit two can hear auxiliary audio (for example from mp3 player) and can communicate with each other. External "ISOL" input provides possibility to switch between ALL mode and ISOL mode. If the /PTT1 input is active and ISOL is active the passenger intercom operation on second intercom circuit is still possible.  While transmit mode intercom operation is degraded. During receive mode the intercom operation activates automatically via VOX (with adjustable threshold), or using the external intercom switch. If intercom operation is active, the "IC" sign appears in the display. 118.005127.000ICSQL  Intercom Operation via VOX Via VOX, the intercom operation is automatically activated (threshold adjustable in the intercom menu). With additional RCU6201, VOX threshold for the first intercom circuit is adjustable from primary controller (AR620X or RCU6201) and for the second intercom circuit from second controller RCU6201.  Intercom activation via VOX is not possible if:
Operating Instructions   VOX & Speaker Operation  110 Transceiver Family 620X DV14307.03 Issue 04 March 2016 • It is enabled  • User switched the VOX off In both cases, VOX is disabled and the display shows the   sign to indicate that activation via VOX is not possible. 118.005127.000ICSQL  Intercom Operation via Intercom Switch Via intercom switch (pin P1-7) independent of VOX or speaker status (enabled/disabled) the intercom operation can be activated externally. The external intercom switch has priority. During intercom operation the speaker output is disabled.  3.11. VOX & Speaker Operation Depending on wiring and configuration setup, the speaker may either always been enabled, or the speaker can be enabled/disabled by switching configurations using external switch /MIKE_SW. When speaker enabled and not muted, the display will show the loudspeaker sign.     118.005127.000ICSQL With active enabled speaker in audio configuration, VOX always forced "OFF" and intercom via VOX is not possible (to avoid oscillation of VOX due to acoustical feedback).  In transmission mode the speaker output is muted (switched "OFF") even if speaker is enabled in current audio configuration in one of the following cases: • Intercom is activated by external intercom switch (I/C input). • Power is below 10 V.  3.12. Menus During normal operation in one of the frequency selection modes, the following menus are available: • The Intercom menu allows adjustment of intercom volume and VOX threshold. • The user menu allows adjustment of panel brightness and squelch threshold. 3.12.1. Intercom Menu A long press (2 s) on "IC/SQL" key activates the intercom menu.The page intercom volume appears.  In this menu a short press on "IC/SQL" key provides toggling between the pages. The intercom menu consists of two pages: • IC VOLUME, • IC VOX. A long press on "MDE" key terminates intercom menu, otherwise the menu automatically terminates after 5 seconds timeout.
  Operating Instructions Menus  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 111 Intercom Volume Menu The active frequency is indicated in the top line of the display, the "IC VOLUME" label and a bar graph with numerical value are show in the bottom line. IC VOLUME40IC 118.005 By means of the "ROTARY ENCODER", the intercom volume is changeable from zero to 46. The intercom volume setting affects the intercom audio and sidetone signal, routed to the headphone. The changes become active immediately. Intercom VOX Menu The active frequency is indicated in the top line of the display, the "IC VOX" label and a bar graph with numerical value are shown in the bottom line. IC VOX 6IC 118.005 By means of the "ROTARY ENCODER" the intercom VOX threshold can be changed from -30 (most sensitive, even a very low microphone signal already triggers the VOX threshold for Intercom operation) to +10 (VOX is less sensitive and only high microphone signals trigger the VOX threshold for intercom operation).  Note: At a setting for VOX threshold of -15 a convenient behaviour of the VOX should be achieved in most aircraft. This requires that mike sensitivity had been correct adjusted (configuration setup). If the mike sensitivity is incorrect adjusted, VOX may not work satisfying. By changing VOX threshold level to above +10, VOX switches "OFF". In this case, "OFF" replaces the numerical value indication. The changes become active immediately. IC VOXOFFIC 118.005 With VOX switched "OFF", activation of intercom operation using the external intercom switch (/IC discrete input) is still possible at any time. The VOX threshold level is not adjustable if VOX forced to be "OFF" (due to enabled speaker in current audio configuration). In tandem installation the  "first"  controller adjust VOX threshold for first intercom circuit, and the second controller RCU6201 adjust VOX threshold for second intercom circuit.
Operating Instructions   Menus  112 Transceiver Family 620X DV14307.03 Issue 04 March 2016 3.12.2. User Menu Press the "MDE"  key for 2 seconds to start the  user menu.  Toggling between the pages by a short press of the "MDE" key, or by a short press of the "ROTARY ENCODER". The user menu consists of two pages: • BRIGHTNESS • SQUELCH TRH To exit the user menu either • Wait 5 seconds without any switch selections. • Press the "MDE" key again for 2 second,  • Press the "ROTARY ENCODER" when the SQUELCH setting page is visible,  BRIGHTNESS The active frequency appears in the top line of the display "BRIGHTNESS"  label appears in combination with a bar graph and the selected value. BRIGHTNESS96IC 118.005 The panel brightness for display illumination and push buttons can be changed from 0 (illumination off) to 100 (maximum brightness) by turning the "ROTARY ENCODER". Note:  This page is not available if in configuration setup the dimming input is set to 14 V or 28 V. For this setting, the aircraft dimming circuit controls the brightness parameters.   SQUELCH A short press on the "ROTARY ENCODER" provides "SQUELCH" trigger level adjustment. The active frequency appears in the top line of the display. On the bottom line "SQUELCH" with bar graph and value is indicated. SQUELCH10IC118.005 By means of the "ROTARY ENCODER", the squelch threshold is adjustable: • At a setting to 6 (very weak signals are audible with high noise content; squelch opens at about -105 dBm).  • At a setting to 26 (only quite strong signals are audible with low noise content; squelch opens at about -87 dBm). With this adjustment the receiver sensitivity is significant reduced.
  Operating Instructions Warning and Failure Indications  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 113 3.13. Warning and Failure Indications Display Contents Description LOW BATTERYIC118.005 Appear in 3-second cycle "LOW BATT" is indicated if the supply voltage of the transceiver is below the threshold defined in the configuration setup. The transceiver is still operable but may have a reduced performance depending on supply voltage. Possible reasons for indication: Accumulator capacity problems (gliders), Power interrupts, General power supply problems, Setting for low battery threshold too high STUCK PTTIC 118.005 Appear in 3-second cycle "STUCK PTT" is indicated after 120 seconds of continued transmission. The transceiver goes back to receive mode even if the PTT line is still active (GND). For initiating a new transmission, the PTT line needs first to become inactive (open). Possible reasons for indication: Transmission lasts more than 120 seconds. PTT-key is stuck. PTT line permanently grounded (short circuit in installation). TX HOTIC 118.005 Appear in 3-second cycle "TX HOT" is indicated if the internal device temperature exceeds +90 °C. Transceiver is still operable. Performance of transmitter is reduced. Possible reasons for indication: Very hot environmental temperature, long transmissions times and insufficient airflow conditions.  FAILUREIC 118.005 Appear in 3-second cycle The transceiver has detected an internal failure during normal operation. Depending on failure reason, the device may still be operable with degraded performance, or not operable at all. Possible reasons for indication: Specified environmental conditions HW or SW failure inside the transceiver. Contact maintenance shop for assistance. FAILUREPRESS ANY KEY  The transceiver has detected an internal failure during start up. Depending on failure reason, the device may be still operable with degraded performance or not operable at all. Possible reasons for indication: Outside specified environmental conditions HW or SW failure inside the transceiver. Contact maintenance shop for assistance. FAILURE  The transceiver has no communication with the controller. Depending on failure reason, the device may be still operable with degraded performance or not operable at all. Possible reasons for indication: Problem with inter-wiring Contact maintenance shop for assistance.
Operating Instructions   Warning and Failure Indications  114 Transceiver Family 620X DV14307.03 Issue 04 March 2016   In case of additional questions contact your local Becker Avionics dealer or forward your request direct to Becker Avionics "Customer Service”.  In the event of damage or a defect, the entire device must be returned for repair. The repair must be made by trained Becker Avionics personnel.  Becker Avionics GmbH • Baden-Airpark B108 • 77836 Rheinmünster • Germany   +49 (0) 7229 / 305-0 • Fax +49 (0) 7229 / 305-217  Customer Service: Sales Email: sales@becker-avionics.com  Support in German or English Email: support@becker-avionics.com  Support in French  E-Mail: FR-sales@becker-avionics.com  User Conversions and Changes are Not Permitted Any change made by the user excludes any liability on our part (excluding the work described in this manual).
  Operating Instructions Warning and Failure Indications  DV14307.03 Issue 04 March 2016 Transceiver Family 620X 115
Index     116 Transceiver Family 620X DV14307.03 Issue 04 March 2016 4. Index Abbreviations .......................................................... 7 Accessories ........................................................... 30 Activation of Intercom Operation via Intercom Switch.................................................................. 110 Activation of Intercom Operation via VOX ........... 109 Additional Conditions of Utilization .......................... 9 AF Auxiliary Input .................................................. 19 ALL Mode ............................................................ 109 Antenna Installation ............................................... 53 AR6201 Single Block Transceiver ......................... 16 AR6203 Single Block Transceiver ......................... 18 Audio Outputs ....................................................... 19 Automatic Storage Function ................................ 106 Auxiliary Audio Input ........................................... 109 BRIGHTNESS ..................................................... 112 Built-in Tests PBIT and CBIT ................................ 20 CBIT ...................................................................... 20 Channel Mode ..................................................... 104 Conditions of Utilization ........................................... 9 Controls and Indicators ......................................... 99 Device Assignment ......................................... 34, 97 Direct Tune Mode ................................................ 102 Electrical Interface ................................................. 44 Emergency Operation ........................................... 20 Environmental Qualification AR620X, RCU6201 ... 24 Environmental Qualification RT6201 ..................... 26 Factory Default Settings ........................................ 68 Features Overview ................................................ 18 Frequency Selection Modes ................................ 101 General Description .............................................. 11 General Safety Definitions ....................................... 8 Illumination ............................................................ 20 Installation ............................................................. 33 Installation and Configuration ................................ 52 Configuration Setup ........................................ 20, 53 Intercom Menu .................................................... 110 Intercom Operation ....................................... 19, 109 Intercom Volume Menu ....................................... 111 Intercom VOX Menu ............................................ 111 ISOL Mode .......................................................... 109 List of Abbreviations ................................................ 7 LOW BATT Indication ........................................... 20 Memory Channels ................................................. 19 Menus ................................................................. 110 Mike Inputs ............................................................ 19 Non Warranty Clause .............................................. 9 Operation Instructions ........................................... 97 Packaging, Transport, Storage ............................. 33 PBIT ...................................................................... 20 User Menu .......................................................... 112 Post Installation Tests ........................................... 92 Purpose of Equipment ........................................... 13 RCU6201 Remote Control Unit ............................. 17 Receive and Transmit Mode ............................... 100 Receive Mode ..................................................... 100 Reception on Preset Frequency in Scan Mode ... 107 Retrofitting ............................................................. 89 RT6201 Remote Transceiver ................................ 17 RX Field Strength Indication ............................... 108 Sales ................................................................... 114 Scan Mode .................................................... 19, 107 Scope of Delivery .................................................. 34 Service Mode ........................................................ 20 Side Tone .............................................................. 19 Squelch ............................................................... 108 SQUELCH ........................................................... 112 Squelch Operation ................................................ 19 Standard Mode ................................................... 101 Support ............................................................... 114 Support in French................................................ 114 Tandem Operation ................................................ 20 Technical Data ...................................................... 21 Transmit Mode .................................................... 100 Trouble Shooting ................................................... 95 Units ........................................................................ 8 Variants Overview ................................................. 14 VOX & Speaker Operation .................................. 110 Warning and Failure Indications .......................... 113 Warranty Conditions ................................................ 9 Wiring Diagrams and Settings ............................... 70   We reserve the right to make technical changes. The data correspond to the current status at the time of printing. © 2016 by Becker Avionics GmbH / all rights reserved  *** End of the Document ***

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