Technisonic TDFM-136B VHF/FM Digital Airborne Transceiver User Manual VHF FM

Technisonic Industries Limited VHF/FM Digital Airborne Transceiver VHF FM

Contents

User Manual 1

TDFM-136B VHF/FM DIGITAL AIRBORNE TRANSCEIVERINSTALLATION INSTRUCTIONSTil Document No. 08RE398Rev. N/CIssue 2DEC 2010Technisonic Industries Limited240 Traders Blvd. E. Mississauga, Ontario L4Z 1W7 Tel: (905) 890-2113 Fax: (905) 890-53383840 E. Robinson road, Suite 214, Amherst, New York 14228 Tel: (716) 691-0669This document contains designs and other information which are the property of Technisonic Industries Ltd. Except for rights expressly granted by contract to the Canadian Government, or to the United States Government, this document may not, in whole or in part, be duplicated or disclosed or used for manufacture of the part disclosed herein, without the prior permission of Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398! CAUTION STATIC S E N S IT IV E !This unit contains static sensitive devices. Wear a grounded wrist strap and/or conductive gloves when handling printed circuit boards.FCC COMPLIANC EThis device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation.WARNING: For compliance with FCC RF Exposure Requirements, the mobile transmitter antenna installation shall comply with the following two conditions:1. The transmitter antenna gain shall not exceed 3 dBi.2. The transmitter antenna is required to be located outside of a vehicle and kept at a separation distance of 1.0 meter or more between the transmitter antenna of this device and persons during operation.NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. 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. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:• Re-orient or relocate the receiving antenna• Increase the separation between the equipment and receiver• Connect the equipment into an outlet or circuit different from that to which the receiver is connected.• Consult the dealer or an experienced radio/TV technician for help.WARNING: Changes or modifications not expressly approved by Technisonic Industries could void the user's authority to operate the equipment.WARR A NTY INFORMATIONThe Model TDFM-136B, VHF/FM Digital Transceiver is under warranty for one year from date of purchase. Failed units caused by defective parts, or workmanship should be returned to:Technisonic Industries Limited Technisonic Industries Limited240 Traders Blvd., 3840 E. Robinson Road, Suite 214Mississauga, Amherst,Ontario L4Z 1W7 New York 14228Tel: (905) 890-2113 Tel: (716) 691-0669Fax: (905) 890-5338iii
08RE398 TDFM-136B Installation InstructionsSTC APPROVALSPresently no TSO standard exists for airborne FM transceivers. To make it easier for installation agencies to provide their customers with an approved installation supported by an effective Airworthiness Approval, Technisonic has secured Supplemental Type Certificate (STC) approvals (both US and Canadian) on it’s airborne FM products for many helicopters currently being delivered in the US and Canada, as well as a number of single engine fixed wing aircraft. The DO-160C test data, referenced below, are also on file and available from Technisonic to support approval requirements in airframes for which Technisonic does not possess an STC.Approved aircraft types are listed in the attachments to the formal STC documents. These STC’s are the exclusive property of Technisonic Industries Ltd., and require the written authority of Technisonic for their use. To assist Factory Authorized Technisonic Dealers in the certification process, we have placed copies of our Canadian and US STC’s on our web site along with a letter of authorization for their use. These documents may be downloaded and used as support for the technical submission to FAA or Transport Canada. Only factory authorized dealers/installers are permitted to download and make use of these documents on behalf of their customers (end users) in support of regulatory agency approval. please refer to the Technisonic web site www.til.ca for the latest issue of available STC’s and letter of authorization for use.iv
TDFM-136B Installation Instructions 08RE398Document Revision Table for 08RE398Rev. / IssuePage Description Date Appr.v
08RE398 TDFM-136B Installation InstructionsTable of ContentsTable of Contents............................................................................................................................viTable of Tables...............................................................................................................................viiTable of Figures..............................................................................................................................vii SECTION 1 - GENERAL DESCRIPTION ....................................................................................1-1 1.1 Introduction......................................................................................................................1-1 1.2 Description........................................................................................................................1-1 1.3 Purpose of Equipment......................................................................................................1-1 1.4 Model Variation.................................................................................................................1-2 1.5 Technical Characteristics..................................................................................................1-2 1.6 Certification Summary......................................................................................................1-4 SECTION 2 - INSTALLATION INSTRUCTIONS .........................................................................2-1 2.1 General.............................................................................................................................. 2-1 2.2 Equipment Packing Log.....................................................................................................2-1 2.3 Transceiver Installation .....................................................................................................2-1 2.4 Installation Kit - Contents...................................................................................................2-1 2.5 Antenna Installation ..........................................................................................................2-1 2.6 Installation - Pin Locations and Connections.....................................................................2-2 2.7 Wiring Instructions.............................................................................................................2-4 2.7.1 Main Power +28VDC..................................................................................................2-4 2.7.2 Main Ground..............................................................................................................2-4 2.7.3 PTT (Ground Keying).................................................................................................2-4 2.7.4 Front Panel Back Lighting..........................................................................................2-4 2.7.5 Audio Outputs (600 ohms and 4 0hms)......................................................................2-4 2.7.6 Audio Output Ground ................................................................................................2-4 2.7.7 Mic Signal Input..........................................................................................................2-4 2.7.8 Memory Up/Memory Down.........................................................................................2-6 2.7.9 Data Input/Output.......................................................................................................2-6 2.8 Transmitter Side Tone Level Adjustment...........................................................................2-6 2.9 Main and Guard Noise Squelch Adjustment......................................................................2-6 2.10 Reference Layouts...........................................................................................................2-7 SECTION 3 - APPENDICIES ......................................................................................................3-1 3.1 Appendix A CTCSS TONE TABLES and DCS CODE TABLES........................................3-1 3.2 Appendix B - POST INSTALLATION EMI TEST INSTRUCTIONS....................................3-2 3.2.1 PURPOSE..................................................................................................................3-2 3.2.2 TEST CONDITIONS..................................................................................................3-2 3.2.3 METHODOLOGY.......................................................................................................3-2 3.2.4 RESULTS...................................................................................................................3-3 3.2.5 PROCEDURE............................................................................................................3-4vi
TDFM-136B Installation Instructions 08RE398Ta ble of FiguresFigure 2-1. Transceiver Mounted View of the 15 Pin Connector.................................................2-2Figure 2-2. Wiring Connections for TDFM-136B Transceiver.......................................................2-3Figure 2-3. Outline Drawing for TDFM-136B Transceiver............................................................2-4Figure 2-4. Control points for the TDFM-136B MCU Board..........................................................2-7Ta ble of TablesTable 1-1. TDFM-136B – Model Variation....................................................................................1-2Table 1-2. TDFM-136B – General Characteristics.......................................................................1-2Table 1-3. TDFM-136B – Operational Characteristics.................................................................1-3Table 1-4. TDFM-136B – Receiver Characteristics – Main and Guard........................................1-3Table 1-5. TDFM-136B – Transmitter Characteristics..................................................................1-4Table 1-6. TDFM-136B – Environmental Testing Summary.........................................................1-4Table 3-1. TDFM-136B - Rear Connector Pin Assignments.........................................................2-2vii
08RE398 TDFM-136B Installation Instructionsviii
S EC T ION 1 GENERAL DESCR IPT IO N 1.1 IntroductionThis publication provides operating and installation information for the TDFM-136B, Digital Transceiver manufactured by Technisonic Industries Limited. The TDFM-136B is Project 25 (P25), Phase 1 compliant. The unit offers digital or conventional analog FM communications over an extended frequency range with selectable channel spacing and is intended for use (in the U.S.) only by government agencies or contractors thereto, who have obtained licensing for operation in the 136-150 MHz portion of the band. If the TDFM-136B transceiver is used in CANADA, operation is restricted to the following sub bands: 138-144, 148-148.99, 149.005-150.005 and 150.05-174 MHz. Furthermore the frequency agile transceiver is restricted to airborne use and must not be operated as a base station in Canada. 1.2 DescriptionThe TDFM-136B, Transceiver is a frequency agile, fully synthesized airborne transceiver capable of operating in the 136.000 MHz to 174.000 MHz frequency range in 2.5kHz increments with either 25 kHz analog, 12.5 kHz analog channel spacing and P25, 12.5 kHz digital modulation on a channel by channel basis. The Transceiver can operate without restriction on any split frequency pair in the band and also incorporates a two channel synthesized guard receiver.The TDFM-136B Transceiver provides 230 operator accessible memory positions. Each of which is capable of storing Scan List membership information, up to eight (8) character alphanumeric identifier, and Operating Mode information. In addition each memory position contains information for both transmit and receive including: frequency, CTCSS tone, DCS (DPL) code, P25 TalkGroup, and P25 Network Access Code (NAC) information.Channel operating parameters, including frequency and other related data, are presented on a 48 character, two line LED matrix display. Data entry and function control takes place via a 12 button keypad. 1.3 Purpose of EquipmentThe TDFM-136B, Digital VHF/FM Transceiver is designed to provide secondary airborne communications to facilitate operations which are typically performed in a low altitude environment. The transmitter section of this unit has a minimum of 8 watts and does not exceed 10 watts output power, which may be reduced by a front panel switch to 1 watt, in order to reduce interference to land based systems.Technisonic Industries Ltd. 1-1
08RE398 TDFM-136B Installation Instructions 1.4 Model VariationThe base Part Number for the Model TDFM-136B is 081252, there are three parameters that affect model variation: display lighting, number of antennae, and encryption operation. The possible combinations result in 12 possible extensions to the base part number, these are shown in Table 1-1 below. Table 1-1. TDFM-136B – Model VariationParameter Part NumberDisplay Lighting Antennae Encryption CapableGreen Single No 081252-1-10Green Single Yes 081252-1-11Green Dual No 081252-1-20Green Dual Yes 081252-1-21Red Single No 081252-2-10Red Single Yes 081252-2-11Red Dual No 081252-2-20Red Dual Yes 081252-2-21N/V Single No 081252-3-10N/V Single Yes 081252-3-11N/V Dual No 081252-3-20N/V Dual Yes 081252-3-21 1.5 Technical CharacteristicsThe tables below provide the technical characteristics for the Technisonic Industries Ltd. Model TDFM-136B.Table 1-2. TDFM-136B – General CharacteristicsCharacteristic SpecificationDimensions (including heat sink) Approx. 8.0" X 3.0" X 5.75"Weight Approx. 3.5 Lbs (1.6 Kg)Mounting Panel Mount via DZUS fastenersPower Requirement: Voltage Current28.0 VDC, ±15%Receive - 0.7 A Max.Transmit Low Power (1W) - 1.3 A Max.Transmit High Power (8-10W) - 2.0 A Max.Audio Output Power: Headset Speaker Output0.5 Watts into 600 ohms2.5 Watts min. into 4 ohmsBack Lighting 28 Volts / 5 VoltsDisplay Colour Green (standard)Red (specify)NVG (specify)Temperature Range: Operating Storage-45ºC to +70ºC-55ºC to +85ºCAltitude 50,000 feet1-2 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398Table 1-3. TDFM-136B – Operational CharacteristicsCharacteristic SpecificationFrequency Range 136.000 to 174.000 MHzOperating Modes conventional Analog: 12.5 / 25 kHz. P25 CAI: 12 KBPS FSK, 9.6 KBPS C4FMChannel Spacing: 25 kHz. or 12.5 kHzProgrammable Memories: Scan Lists Description Operating Modes Frequency Squelch Modes230 memories 15 scan lists Up to 8 characters, alpha-numeric Analog Wide, Analog Narrow, P25 Digital Rx/Tx (Simplex/Duplex), 136.0000 – 174.0000 Rx/Tx (Simplex/Duplex), CTCSS Tones, DCS Codes, P25 TalkGroup, P25 NACGuard Receiver: Description Operating Modes Frequency Squelch Modes2 channels programmed with: Up to 8 characters, alpha-numeric Analog Wide, Analog Narrow, Digital Rx/Tx (Simplex/Duplex), 136.0000 – 174.0000 MHz. Rx/Tx (Simplex/Duplex), CTCSS Tones, DCS Codes, P25 TalkGroup, P25 NACCTCSS Tones 42 CTCSS tones, including all standard tones.DCS Codes All standard DCS (DPL*) codesP25 TalkGroup $0000 to $FFFF ( 0 to 65535 ) P25 Network Access Code (NAC) $000 to $FFF ( 0 to 4095 )* DPL is a trademark of Motorola CorporationTable 1-4. TDFM-136B – Receiver Characteristics – Main and GuardCharacteristic SpecificationSensitivity at 12 dB SINAD -116dBmAdjacent Channel Selectivity -60dB (25 or 12.5 kHz)Spurious Attenuation -70 dBThird Order Intermodulation -70 dBImage Attenuation -80 dBFM Acceptance ± 6 kHzHum and Noise Better than 45dBAudio Distortion less than 5%Antenna Conducted Emission less than -57dBmTechnisonic Industries Ltd. 1-3
08RE398 TDFM-136B Installation InstructionsTable 1-5. TDFM-136B – Transmitter CharacteristicsCharacteristic SpecificationRF Output Power: Low High1 watt10 wattsOutput Impedance 50 ohmsMaximum Deviation: Wide (25 kHz) Narrow (12.5 kHz)± 5 kHz ± 2.5 kHzMaximum Deviation – Narrow ± 2.5 kHz (12.5 kHz mode)Spurious Attenuation -90 dB below carrier levelFrequency Stability ± 2.5 ppmMicrophone Circuit Carbon or equivalentSide-tone Output 0.5W (max) into 600ohmsHarmonic Attenuation -65 dB below carrier levelFM Hum And Noise -40 dBAudio Input 50 mV at 2.5 into 200Ω input circuit for ± 3.5 deviation, adjust.Audio Distortion Less than 5% 1.6 Certification SummaryThe following table gives a summary of DO-160D Environmental Testing for Technisonic Model TDFM-136B, VHF Digital Transceiver.Table 1-6. TDFM-136B – Environmental Testing SummaryConditions Section Conducted TestTemperature and Altitude 4.0 Equipment tested to Categories B2 and D1.Temperature Variation 5.0 Category B.Humidity 6.0 Category A.Operational Shock and Crash Safety7.0 Category A.Vibration 8.0 Equipment is tested without shock mounts to categories S and U.Magnetic Effect 15.0 Equipment is class A.Power Input 16.0 Category B.Voltage Spike 17.0 Category B.Audio Frequency Susceptibility 18.0 Category B.Induced Signal Susceptibility 19.0 Category A.Radio Frequency Susceptibility 20.0 Category U.RF Emission (DO-160D)RF Emission (DO-160C)21.021.0Category B.Category Z.Electrostatic Discharge 25.0 Category A.1-4 Technisonic Industries Ltd.
S E C T I O N 2 INSTALLATION INST RUCT IONSThis section contains information and instructions for the correct installation of the TDFM-136B, VHF/FM Digital Transceiver.Make certain that the correct frequencies are pre-programmed in accordance with the equipment user's valid FCC operator's license, prior to installation. 2.1 Equipment Packing Log Unpack the equipment and check for any damage that may have occurred during transit. Save the original shipping container for returns due to damage or warranty claims. Check that each item on the packing slip has been shipped in the container. Verify that the equipment display and back-lighting configuration are the same as those ordered. 2.2 Transceiver Installation The TDFM-136B Transceivers are designed to be Dzus mounted and should be installed in conjunction with a IN-150 installation kit. See Figure 2-3 for an outline drawing of the unit with dimensions to facilitate the installation. 2.3 Installation Kit - Contents The IN-150 installation kit consists of: 1. One 15 pin Cannon D mating connector (female) complete with crimp pins and hood.2. One BNC antenna mating RF connector (male) and hood. 2.4 Antenna Installation Antenna, P/N CI-292, or a suitable equivalent, may be used with the TDFM-136B transceivers. The antenna should be mounted on the bottom of the aircraft whenever possible and must be located at least 1.0 meter (40 inches) from any occupant in the airframe. Consult the instructions provided with the antenna. Connect RF cable from antenna to the back of the TDFM-136B unit by utilizing the BNC mating connector provided in the installation kit.Technisonic Industries Ltd. 2-1
08RE398 TDFM-136B Installation Instructions 2.5 Installation - Pin Locations and Connections A single 15 pin DSUB connector, mounted on the rear of the unit, provides the means to connect all power, control and audio signals between the TDFM-136B and the airframe. The pin numbers and locations for the 15 pin DSUB connector are shown in figure 2-1 below. The view shown is of the connector mounted in the unit, select mating connector appropriately. Figure 2-1. Transceiver Mounted View of the 15 Pin ConnectorThe description of the pin connections for the transceiver are in provided in TABLE 3-1.Table 3-1. TDFM-136B - Rear Connector Pin AssignmentsPin # Description Notes1 Audio - Headset output – 600 ohm2 Serial Data Out output – RS2323 Power - Panel Lighting 28VDC standard, 5VDC option4 Signal - Memory Up input – active low5 Signal - Memory Down input – active low6 Audio - Microphone input7, 14 Power - Main +28VDC power8, 15 Power - Main Ground power9 Audio - Speaker output – 4 ohm10 Signal Ground11 Serial Data In input – RS23213 Signal – PTT input – active lowDetailed wiring information is supplied in figure 2-2 below.2-2 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398QTYITEMPART NUMBERDESCRIPTIONSPECMATERIAL1 1 TDFM-136B VHF/FM COMMUNICATIONS TRANSCEIVER TECHNISONIT INDUSTIRES LTD.1 2 CI-292 ANTENNA COMANT INDUSTRIES1 3 11/03/74 CIRCUIT BREAKER, 3A KLIXONFigure 2-2. Detailed Wiring Connections for TDFM-136B TransceiverTechnisonic Industries Ltd. 2-328 VDC POWER 728 VDC POWER 14MEMORY UP 4MEMORY DOWN 5PANEL LIGHTING 3600 ohm AUDIO OUT 1MIC IN 6SIGNAL GROUND 10PTT IN 13POWER GROUND 8POWER GROUND 15ANTENNATDFM-136B FM TRANSCEIVER7#20 AWG 31228 VDCBUS89#20 AWG1012113ARG-142/U OR EQUIVALENTNOTES:1) ALL WIRE IAW MIL-W-22579 UNLESS OTHERWISE SPECIFIED.2) ALL CABLE IAW MIL-C-27500 UNLESS OTHERWISE SPECIFIED.3) COAXIAL CABLE IAW MIL-C-17 UNLESS OTHERWISE SPECIFIED. DO NOT USE COAX WITH PVC INSULATION.4) FABRICATION & INSTALLATION OF WIRING HARNESS IAW AC 43.13-1A CHAPTER 11, SECTION 3, PARA 445 TO 462 AND SECTION 7.5) GROUNDING AND BONDING IAW AC 43.13-1A CHAPTER 11, SECTION 3, PARA 452.6) ALL SINGLE WIRE TO BE #22 AWG MINIMUM AND ALL SHIELDED WIRE TO BE #24 AWG MINIMUM, UNLESS OTHERWISE SPECIFIED.INSTALLATION OF ANTENNA IAW AC 43.13-1A CHAPTER 2, SECTION 3, CHAPTERS 5&6, AND AC43.13-2A CHAPTER 3.IF POSSIBLE, THE ANTENNA SHOULD BE LOCATED A MINIMUM OF 12 FT FROM AIRCRAFT NAVIGATION RECEIVER ANTENNAS ANDA MINIMUM OF 4 FEET FROM AIRCRAFT COMMNICATIONS AND ELT ANTENNAS. BE CAREFUL NOT TO CHOSE SEPARATIONS THATCLOSELY APPROXIMATE ¼ OR ½ OR WHOLE NUMBER MULTIPLES OF THE NAVIGATION OR COMMUNICATIONS SYSTEM WAVELENGTH.AN EQUIVALENT CIRCUIT BREAKER OR FUSE MAY BE USED.THE MEMORY UP/DOWN PUSH BUTTONS ARE OPTIONAL.CONNECT TO THE APPROPRIATE AIRCRAFT DIMMING BUSS.CONNECT TOTHE AIRCRAFT AUDIO SYSTEM OR STAND-ALONE HEADSET JACKS.INSTALLATION OF TRANSCEIVER IAW AC 43.13-1A CHAPTER 2, SECTION E AND AC 43.13-2A, CHAPTER 2. PR 3 1/2 DZUS RAILOR EQUIVALENT MAY BE USED.13) TEST THE SYSTEM IN ACCORDANCE WITH THE POST-INSTALLTION TEST PROCEDURE IN THE INSTALLATION MANUAL.14) REFER TO THE AIRCRAFT STRUCTURAL REPAIR MANUAL AND THE MAINTENANCE MANUAL FOR INSTRUCTIONS AND INFORMATION PERTINENT TO THIS INSTALLATION.15) THE USE OF RED DISPLAYS SHOULD BE MINIMIZED OR AVOIDED SO AS NOT TO DETRACT FROM THE ATTENTION GETTING CHARACTERISTICS NEEDED IN WARNING AND CAUTION ANNUNCIATORS. RED SHOULD BE USED TO ANNUNCIATE EMERGENCY CONDITIONS REQUIRING IMMEDIATE RESPONSE BY THE FLIGHT CREW. UNITS WITH RED DISPLAYS SHOULD NOT BE LOCATED IN CLOSE PROXIMITY TO WARNING AND CAUTION ANNUNCIATORS. THE INSTALLATION OF UNITS WITH RED DISPLAYS MUST BE EVALUATED ON A CASE BY CASE BASIS TO ENSURE THAT THE EFFECTIVENESS OF THE WARNING AND CAUTION ANNUNCIATORS IS NOT ADVERSELY AFFECTED.789101112
08RE398 TDFM-136B Installation Instructions 2.6 Physical Dimensions Figure 2-3 below shows the physical dimensions of the unitFigure 2-3. Outline Drawing for TDFM-136B Transceiver2-4 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398 2.7 Wiring Instructions Figure 2-3 shows all required connections and recommended wire sizes for the TDFM-136B Transceiver operation in the airframe. 2.7.1 Main Power +28VDC The main power +28VDC (±15%) is connected to pins 7 and 14 of the transceiver. Bothpins should be connected. 2.7.2 Main Ground Ground connections for the transceiver are made on pins 8 and 15. Both pins should be connected 2.7.3 PTT (Ground Keying) The PTT line is connected to pin 13 and should be floating when the transceiver is in receive mode, and grounded during transmit mode. 2.7.4 Front Panel Back Lighting Front panel back lighting connection should be made on pin 3 of the transceiver. The opposite end of this lead should be connected to the panel lighting system of the aircraft. Before connecting, verify the required panel lighting voltage, the unit is compatible with both 28V and 5V lighting bus voltages. 2.7.5 Audio Outputs (600 ohms and 4 0hms) The audio output from pin 9 can be used to drive a 4 ohm speaker up to 2.5 watts. Audio output from pin 1 is 600 ohms, 0.5 watts maximum. 2.7.6 Audio Output Ground Pin 10 is the ground for both the 4 ohm and 600 ohm audio output signals on pins 9 and 1. 2.7.7 Mic Signal Input The microphone input signal is to be provided on pin 6, utilising shielded wire with the shield grounded to pin 10. 2.7.8 Memory Up/Memory Down Remote scrolling through the memory positions can be achieved by providing a ground to pins 4 (up) and 5 (down) through a momentary contact cyclic switch. 2.7.9 Data Input/Output Channel data may be transferred to and from the unit using RS-232 communications protocol via pins 2 and 11.Technisonic Industries Ltd. 2-5
08RE398 TDFM-136B Installation Instructions 2.8 Transmitter Side Tone Level Adjustment The side tone level is set at the factory and there is no hardware adjustment. However, this level can be altered, via the radio software, to suit local conditions as follows:1. Set the transceiver operating frequency to 155.0000 MHz and connect an appropriate test receiver to the RF output connector. Ensure that the output of the transceiver is terminated into a proper dummy load.2. Key the transmitter and input a 1 kHz audio signal @ -10 dBm (0.25 VRMS) into the microphone input.3. Select the Side-Tone Adjust command, and then adjust the side-tone level using the up/down arrows (keys 2 & 8) to produce a +3.0 dBm (1.0 VRMS) at the 600 ohm audio output (headset output). 2.9 Main and Guard Noise Squelch Adjustment The squelch on both the main and guard receivers is factory set to open at approximately 0.5 microvolts, there is no hardware adjustment. However, this value can be altered, via the radio software, to suit local conditions as follows:1. Set the main receiver of the transceiver to 155.000 MHz. Connect a signal generator to the antenna input of the transceiver.2. Set the signal generator to produce a ± 3 deviation with a 1 kHz tone on 156.0000 MHz. Increase the signal generator RF level from 0.1 uV until the squelch indicator LED is on. Verify the receiver SINAD ratio is between 12 and 14 dB.3. If not, re-adjust main receiver squelch via the Edit Squelch software command.4. Repeat the above procedure to adjust the guard receiver squelch setting using guard receiver squelch adjustment software command. 2-6 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398 2.10 Reference Layouts The reference layout shown in figure 3-4 below, shows the position of jumper control points for the MCU board.Figure 2-4. Control points for the TDFM-136B MCU BoardJP1: Front Panel Power Switch bypass jumper. Insert a shunt to power unit with no front panel attached. Default: no shunt installed.JP3: Serial Communications Protocol Select Jumper:1-3 & 2-4: RS-485 - default3-5 & 4-6: RS-232all other combinations are invalid.P3: factory use only, no shunt installedP4: factory use only, no shunt installedP5: Restricted Access Lock Select.Technisonic Industries Ltd. 2-7059582FJP3JP1P3P4P5
Technisonic Industries Ltd. 2-8
S E C T I O N 3 App e n d i c i e s 3.1 Appendix A CTCSS TONE TABLES and DCS CODE TABLESAvailable CTCSS Tones Available DCS CodesTone Code Code67 23 31569.3 25 33171.9 26 34374.4 31 34677 32 35179.7 43 36482.5 47 36585.4 51 37188.5 54 41191.5 65 41294.8 71 41397.4 72 423100 73 431103.5 74 432107.2 114 445110.9 115 464114.8 116 465118.8 125 466123 131 503127.3 132 506131.8 134 516136.5 143 532141.3 152 546146.2 155 565151.4 156 606156.7 162 612162.2 165 624167.9 172 627 173.8 174 631 179.9 205 632 186.2 223 654 192.8 226 662 203.5 243 664206.5 244 703 210.7 245 712 218.1 251 723 225.7 261 731 229.1 263 732 233.6 265 734 241.8 271 743 250.3 306 754 254.8 311Technisonic Industries Ltd. 3-1
08RE398 TDFM-136B Installation Instructions 3.2 APPENDIX B - POST INSTALLATION EMI TEST INSTRUCTIONS 3.2.1 PURPOSEThe purpose of these tests is to identify any interference that the TDFM-136B may cause with existing aircraft systems. 3.2.2 TEST CONDITIONSThe TDFM-136B transceiver should be installed and function tested. The antenna VSWR should be checked. A forward/reverse power check with an in-line wattmeter should show no more than 10% reflected power. For the following tests, insure that the power switch is in the high position. 3.2.3 METHODOLOGYMost of the EMI tests can be accomplished on the ground. In some cases flight testing is required or is easier. If the aircraft is approved for IFR operations, then it is mandatory that interference between the TDFM-136B Airborne FM and the approach aids be checked in flight.The GPS should be operational and navigating with at least the minimum compliment of satellites. The VHF comm should be set to the frequencies indicated with the squelch open. VOR/DME receivers should be set to the frequencies indicated and selected for display. If possible, set up a DME ramp test set on the frequencies indicated and adjust the output until the flags are out of view. The transponder and encoder should be monitored with ramp test equipment. Set the output of the transponder test set to 3db above the output necessary to achieve 90% reply. If possible set the ADF to a nearby navigation station.Modulate the TDFM-136B transmitter on the indicated frequencies for at least 20 seconds.Observe the GPS for any degradation in satellite status or availability or flags. Listen for any noise or detected audio signals on the VHF comm(s). Listen for any noise or detected audio signals on the VOR/LOC receiver audio; look for any movement of flags or needles on the VOR/LOC/GS navigation display(s). Observe the transponder for any loss of reply or spurious reply.List the power plant, fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting. Assess the results.If the aircraft is equipped with an auto-pilot or a stability augmentation system, then test fly the aircraft and verify that operation of the TDFM-136B transceiver does not have adverse effects on these systems.After checking for gross effects at a safe altitude, fly an approach with each of the different navigation systems coupled to the auto-pilot (ILS,GPS etc.) and look for any anomalies.3-2 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398 3.2.4 RESULTSIf the installed system passes all of the applicable EMI tests, then no further action is required. If interference is observed, then the interference must be assessed against the appropriate standards of airworthiness for the system in question. For example, it is permissible for a VFR certified GPS to lose navigation capability while the TDFM-136B is transmitting providing that it recovers properly and promptly, but is not permissible for an IFR approach certified GPS to be affected in the same way. A complete discussion of all the standards of airworthiness to be applied in assessing EMI effects is beyond the scope of this document.Technisonic Industries Ltd. 3-3
08RE398 TDFM-136B Installation Instructions 3.2.5 PROCEDUREA. Operate the TDFM-136B transmitter on the following frequency for at least 20 seconds. Observe the GPS for any degradation in satellite status or availability or flags.Frequencies GPS #1 GPS #2Pass Fail Pass Fail143.1800 MHz143.1825 MHz157.5000 MHz157.5425 MHzNOTES:3-4 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398B. Determine if the image frequency for the VHF Comm falls within the range of the TDFM-136B. If so, select a set of frequencies that will cause the TDFM-136B to be set as close as possible to the image frequency. Any one of the many possible sets will suffice. Record those values in the spaces provided in the following chart. Modulate the TDFM-136B transmitter on the following frequencies for at least 20 seconds. Listen for any noise or detected audio signals on the VHF Comm.Example – Bendix/King KY 196A;The first IF frequency is 11.4 MHz. The L.O. is above the receive frequency (high side injection), therefore the image frequency is 22.8 MHz above the selected frequency. Set the KY 196A to 120.000 MHz and the TDFM-136B to 142.8000 MHz.Frequencies ResultsVHF #1 TDFM-136B Pass Fail135.975 MHz 138.0000 MHz121.150 MHz 157.5000 MHz131.250 MHz 157.5000 MHzImageFrequencies ResultsVHF #2 TDFM-136B Pass Fail135.975 MHz 138.0000 MHz121.150 MHz 157.5000 MHz131.250 MHz 157.5000 MHzImageNOTES:Technisonic Industries Ltd. 3-5
08RE398 TDFM-136B Installation InstructionsC. Determine if the image frequency for the VOR/ILS Nav falls within the range of the TDFM-136B. If so, select two sets of frequencies that will cause the TDFM-136B to be set a close as possible to the image frequency. Chose one set in the localizer frequency range. and one in the VOR frequency range. Record those values in the spaces provided in the following chart. Modulate the TDFM-136B transmitter on the following frequencies for at least 20 seconds. Listen for any noise or detected audio signals on the receiver audio; look for any moment of flags or needles on the navigation display.Frequencies ResultsVOR / ILS #1 TDFM-136B Pass Fail108.000 MHz 162.0000 MHz108.100 MHz 162.1500 MHzImageImageFrequencies ResultsVOR / ILS #2 TDFM-136B Pass Fail108.000 MHz 162.0000 MHz108.100 MHz 161.1500 MHzImageImageNOTES:3-6 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398D. Modulate the TDFM-136B transmitter on the following frequencies for at least 20 seconds. Observe the Glide Slope displays. Look for any movement of flags or needles on the Navigation display.Frequencies ResultsGlide slope #1 TDFM-136B Pass Fail334.7 (108.1) 167.3500 MHzFrequencies ResultsGlide slope #2 TDFM-136B Pass Fail334.7 (108.1) 167.3500 MHzNOTES:Technisonic Industries Ltd. 3-7
08RE398 TDFM-136B Installation InstructionsFor the following tests (E & F), select a frequency at the top, middle and bottom of the band of the TDFM-136B Transceiver.VHF Band (138 to 174 Mhz)Frequency No. 1Frequency No. 2Frequency No. 3E. At a safe altitude engage the autopilot or stability augmentation system. Modulate the TDFM-136B on the above frequencies for at least 20 seconds. Observe any effect on the autopilot or stability augmentation system.Observations:F. Perform a coupled ILS approach to the aircraft’s certified limits. Modulate the TDFM-136B transmitter on the above frequencies for at least 20 seconds. Observe any effect on the autopilot. Repeat for second flight director/autopilot if so equipped.Observations:3-8 Technisonic Industries Ltd.
TDFM-136B Installation Instructions 08RE398G. List the power plant, fuel and other electric instruments in the chart provided and note any anomalies that occur while transmitting. Assess the results.Step System Pass Fail Notes1 Comm 1 and Comm 22 Transponder and Encoder3 ADF 1 and 24 Vertical Gyro5 Glide slope 1 and 26 VOR/LOC 1 and 27 Directional Gyro8 Compass9 Fuel Pressure10 Oil Temperature11 Ammeter12 Bus Voltage13 Fuel14 Nt15 TOT16 % Torque17 Digital Clock18 Oil Pressure19 AnnunciatorsTechnisonic Industries Ltd. 3-9
08RE398 TDFM-136B Installation InstructionsStep System Pass Fail Notes2021222324252627NOTES:3-10 Technisonic Industries Ltd.

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