Becker Avionics TG480 VHF/AM Transceiver User Manual TITEL 3

Becker Avionics, Inc. VHF/AM Transceiver TITEL 3

Installation and Operation

Installation and OperationM a n u a l TG480-(025)- ( X X )Issue 1 A p r i l 2 0 0 7B E C K E R A V I O N I C S • 1 0 3 7 6 U S A T o d a y W a y • M i r a m a r , F L 3 3 0 2 5 Phone 954-450-3137 • F a x 9 5 4 - 4 5 0 - 3 2 0 6 VHF Ground Station TG480-(025)-(XX)
FIRST ISSUE AND CHANGESIssue . . . 1 . . . . April 2007LIST OF EFFECTIVE PAGES Page No.: Date : Page No.: Date :Title1 -I - 1-II1-1 - 1-82-I - 2-II2-1 - 2-73-I - 3-II3-1 - 3-2504/0704/0704/0704/0704/0704/0704/07© 2007 by Becker Avionics, Inc.All rights reserved
Table of contentsSection 1 GENERAL INFORMATION Page1.1 Introduction 1-11.2 Purpose of equipment 1-11.3 General description 1-11.3.1 Short description CORE Module 1-21.4 Technical Data 1-41.4.1 Technical data general, power supply 1-41.4.2 Technical data environmental 1-51.4.3 Technical data receive 1-51.4.4 Technical data transmitter 1-61.4.5 Technical data mechanical 1-61.4.6 Technical data battery operation (option 101) 1-71.4.7 Option 2-wire remote control (option 102) 1-71.4.8 Option multi-wire remote control (option 103) 1-71.4.9 Option tape recorder control (option 104) 1-71.4.10 Scope of delivery 1-81.5 Accessories 1-8TG480-(025)-(XX)TG480XX.01 Issue 04/07 1-I
INTENTIONALLY BLANKTG480-(025)-(XX)1-I TG480XX.01 Issue 04/07
Section 1 GENERAL INFORMATION1.1 IntroductionThis manual TG480XX.01 describes the VHF ground station TG480-(025)-(XX).The manual TG480XX.01 "Installation and Operation" contains the following sections :Section DV 480XX.011 General Information X2 Installation X3 Operation X1.2 Purpose of equipmentThe VHF ground station TG480-(025)-(XX) is a fixed ground station for speech communications in the VHF frequency range of 118.000 MHz to 136.975 MHz.The ground station is designed for airport and airfield use and can be used as a main transceiver on landing fields and as a standby unit on airports and for special tasks within the scope of air traffic control.1.3 General descriptionThe VHF ground station is designed for mounting in 19-inch rack systems or in an ATC desk.The VHF ground station is designed to operate on a AC supply voltage of 115 V or 230 V ± 10% /50-60 Hz. In DC operation, the VHF ground station is designed to operate on a voltage of 13.75 V [TG480 - (10) or 24V, TG480 - (20), TG480 -(50)].The control circuit switches over to external DC voltage if the AC voltage supply fails. If an internal battery is fitted to provide an emergency power supply, it will still be possible to maintain T/R communication for several hours if the AC and external DC supplies fail. The necessary charging circuit for the battery is located inside the TG480 - ( ). TG480-(025)-(XX)TG480XX.01 Issue 04/07 Page 1-1
GENERAL DESCRIPTION1.3.1 General description of CORE Module A. The VHF transceiver has been developed as a single block unit. The dimen-sions correspond to the standard instrument diameter of 58 mm. All controls and indicators are located on the front panel.The rear of the unit holds the equipment connector and the antenna socket.B. After it is switched on, the unit performs a self test. All segments of the display flash during the self test. If faults are detected, the LCD (liquid crystal display) displays a fault code for approximately five seconds. The VHF transceiver then automatically activates the mode set before it was switched off.C . The VHF transceiver is fitted with a single superheterodyne receiver. A squelch (muting) circuit suppresses transmitters or disturbances below a certain field strength. The switching threshold can be set. The squelch function can also be switched off.D . The transmitter is designed to be wideband over the 118.000 MHz to 136.975 MHz range. The transmitter output power is ≥ 5 Watt. The sidetone is automatically switched to the headphone output during transmission.E. The oscillator frequency of the receiver and the the transmitting frequency of the transmitter are generated by a VCO (voltage controlled oscillator). This is monitored by a digital frequency evaluation circuit. This digital frequency processing operates in conjunction with a microprocessor.F. The microphone inputs are designed for both dynamic and standard microphones. The inputs are connected to a dynamic volume compressor which keeps the modulation voltage constant over a wide input voltage range.G . The frequency indication is by means of a liquid crystal display (LCD). The required operating frequency is set using the MHz and kHz frequency selector switches. The MHz rotary switch engages at 1 MHz steps and the kHz rotary switch at 25 kHz steps. The VHF transceiver also contains a memory device for storing 99 different frequencies which remain stored even with the unit switched off without an auxiliary battery.INSTALLATION AND OPERATION AR 4201 - ( )TG480-(025)-(XX)1-2 TG480XX.01 Issue 04/07
H. The VHF transceiver also contains a monitoring stage for the supply voltage which is activated when the VHF transceiver is switched on. If the supply voltage drops below 10.5 V, the segments of the LCD begin to flash.I. In the mode 3, the supply voltage and temperature is displayed in the bottom line of the LCD.J. The AF auxiliary input enables AF signal switching of auxiliary units in the air-craft. The switched AF signals can, however, only be monitored in the reception mode.K. If illumination of the LCD is required, this can be connected either directly to the supply voltage or via a dimmer.L. The scan function can be switched on in the service mode and called up in mode 2. The active frequency is shown in the top line of the display and the bottom line shows the associated storage channel with the preset CS. In the scanning mode the stored frequencies in the storage channels are scanned in succession at 200 ms intervals. When an evaluatable reception signal is found, the VHF transceiver remains on this frequency until an evaluatable reception frequency is no longer present. It then begins to scan all the stored frequencies again in 200 ms intervals. In the service mode, the hold time between the end of an evaluatable signal and the continuation of the scanning of the next chan-nels can be set to between 0 and 60 seconds.M. Special functionsVHF transceiver contains some special functions which can be set in the service mode.lAdjustment of volume IC, sidetone, AF auxiliary and the sensitivity of dy-namic microphone.lThe switch-on threshold of the squelch can be set in the service mode.lThe frequency setting can be inhibited. The VHF transceiver then opera-tes onlH.The VHF transceiver also contains a monitoring stage for the supply voltage.lThe storage of frequencies in the storage channels can be inhibited.lStored frequencies can be erased.lAccess to the service mode can be interlocked with a 4-digit password.lThe scan function can be switched on.TG480-(025)-(XX)TG480XX.01 Issue 04/07 Page 1-3
1.4 Technical data1.4.1 Technical data general, power supplyAC-Operating voltage 115 V or 230 V ± 10% 50/60 HzDC-Operating voltage TG480 - (10) 12 V . . . 16 V TG480 TG480 - (20), TG480 - (50) 24 V +20% -10% Current consumption at 115 V ACTG480 - (05) max. Rx = 65 mA max. Tx = 300 mATG480 - (10) max. Rx = 250 mA max. Tx = 1,5 A TG480 - (20) max. Rx = 250 mA max. Tx = 1,8 ACurrent consumption at 230 V ACTG480 - (10) max. Rx = 170 mA max. Tx = 0,9 A TG480 - (20) max. Rx = 170 mA max. Tx = 1.1A TG480 - (50) max. Rx = 170 mA max. Tx = 3ACurrent consumption at 13,75 V DCTG480 -(10) max. Rx = 200 mA max. Tx = 1800 mACurrent consumption at 24 V DCTG480 - (20) max. Rx = 200 mA max. Tx = 4,5 ATG480 - (50) max. Rx = 200 mA max. Tx = 9,0 A Battery int./U = 12.0 V (optional) max. Rx = 240 mA max. Tx = 1800 mAFusePS 24V 15ADC 24V 15ADC-DC 15V 5AAC 120V SpareAC 120V 10A10AProtection against wrong polarity at DC external voltageTG480XX.01 Issue 04/07 Page 1-43TG480-(025)-(XX)
Frequency range 118.000 MHz - 136.975 MHzFrequency tolerance ≤ 15 ppmChannel spacing 25 kHzNumber of channels 760 Number of channel memories 99 Antenna impedance 50 Ω1.4.2 Technical data environmentalOperating temperature range - 15° C . . . + 50° CStorage temperature range - 40° C . . . + 70° CHumidity (operating) ≤ 95% / 40° C without condensationHumidity (storage) ≤ 95% / 40° COperating altitude Operating - 200 . . . 3500 mTransport - 200 . . . 10000 m1.4.3 Technical data receiverSensitivity m = 60 % / 1 kHz ≤ 5 µV (EMF) S + N ≥ 10 dB NSelectivity± 17 kHz ≥ 40 dB± 25 kHz ≥ 60 dBIntermodulation ≥ 65 dBIF frequency 21.4 MHzIF bandwith ≥ ± 8 kHzSquelch adjustable (dependant on carrier)AF output power asym. (Speaker) ≥ 2 W 4 Ω (adjustable)AF output power sym. (Headphone) ≥ 0.1 W 600 Ω (adjustable)Distortion ≤ 10 %Spurious emission - 57 dBm (2 nW)Page 1-5 TG480XX.01 Issue 04/07TG480-(025)-(XX)
1.4.4 Technical data transmitterTransmitter power output VSWR 1:1 TG480 - (10) ≥ 10WTG480 - (20) ≥ 20WTG480 - (50) ≥ 50WTolerable VSWR 2:1Modulation type A3E Modulation factor ≥ 80% and ≤ 100%Distortion ≤ 10 % ≤ 15% TG480 - (50)Duty cycle 1 minutes transmit- and 4 minutes receive modeCarrier noise level ≥ 35 dBSpurious emissions ≤ 54 dBm (4 nW)Dynamic Mic. ≤ 2mV symm . (dynamic compressor)1.4.5 Technical data mechanicalDimensions Case 448 x 350 x 89 mm19 Zoll unit 483 x 350 x 89 mm Antenna connector N-femaleWeight (without options) 78.5 kgTG480XX.01 Issue 04/07 Page 1-6TG480-(025)-(XX)
1.4.6 Technical data battery operation (option 101)Nominal voltage 12 V DC Capacity of internal battery transmit/receive ratio of 1 : 4 typ. 3 hrs.transmit/receive ratio of 1 : 9 typ. 5 hrs.standby mode typ. 8 hrs.Number of internal batteries 1Battery type Lead battery 2,2 Ah1.4.7 Option 2-wire remote control (option 102)Max. length of wire ≤ 10 kmImpedance 600 Ω1.4.8 Option multi-wire remote control Max. length of wire ≤ 100m1.4.9 Option recorder control OP 104Audio output recorder 100 mV at 47kΩ (adjustable)Page 1-7 TG480XX.01 Issue 04/07TG480-(025)-(XX)
1.4.10 Scope of deliveryVHF ground station TG480 - (10 ) Stock no.: 940.437-926or VHF ground station TG480 - (20 ) Stock no.: 940.436-926or VHF ground station TG480 - (50 ) Stock no.: 940.435-926Fuse 3.15 AT Stock no.: 788.074-392Fuse 4 AT Stock no.: 769.304-392Fuse 10 AT Stock no.: 912.109-392Cable connector (DC connection) Stock no.: 724.890-277Mains cord (AC connection) Stock no.: 295.728-2771.5 AccessoriesAntenna connector (N-male) Stock no.: 716.502-277 Hand dyn. microphone with Stock no.: 344.214-951 cable with 5-pole DIN connector 1PM012 Shure 514B dyn. mike Stock no.: 901.402-350 Lighting protection, IS-50NXCO Stock no.: 962.704-283 Antenna 1A049 Stock no.: 812.064-952Notch-Filter Stock no.: 889.407-918DTR 40-FD Remote Control (CPI) Stock no.: 919.442-951DTP1-C, DC term. panel (CPI) Stock no.: 919.443-951TG480XX.01 Issue 04/07 Page 1-8TG480-(025)-(XX)
Table of contentsSection 2 INSTALLATION Page2.1 Installation in a tower ATC desk 2-12.1.1 General 2-12.1.2 Pre-installation check 2-12.1.3 Visual inspection 2-12.1.4 Setting up the VHF-ground station 2-12.1.5 Installation of fuse for battery (Option 101) 2-22.1.6 Mechanical installation of VHF ground station in an ATC desk 2 - 22.1.7 Hints for installation of the VHF ground station in an ATC desk 2-32.1.8 Connection of external PTT switch or PTT foot switch 2-32.1.9 Installation of antenna system 2-32.1.10 Lightning protection 2-3 2.1.11 Grounding the VHF ground station 2-32.1.12 Over-voltage protection 2-3 2.1.13 Tuning Instructions for the co-location filter 2-32.2 Pin connection front / rear panel 2- 32.2.0 Pin connection service connector 2-32.2.1 Pin connection mike connector J 25 (MIC) 2-42.3 Pin connection rear side 2-42.3.1 Pin connection remote control J 19 (REMOTE CONTROL) 2 - 42.3.2 VHF tunable filter 2 - 42.3.3 Pin connection tape recorder connector J 23 (TAPE RECORDER) 2-52.3.4 DC EXT. INPUT connector wiring 2-5Fig. 2-1 Mechanical installation 19-inch adaptors 2 - 2Fig. 2-2 Installation wiring diagram tape recorder 2 - 5Fig. 2-5 Dimensions TG480 - ( ) 2 - 7TG480XX.01 Issue 04/07 2-ITG480 A - ( XX )
INTENTIONALLY BLANK2-II TG480XX.01 Issue 04/07TG480-(025)-(XX)
Section 2 INSTALLATION2.1 Installation in a Tower ATC desk2.1.1 GeneralThe VHF ground stati on can be incorporated in a tower air traf fic control desk depending on the type of the latter. The following instructions thus apply only in a general way.CautionIn stal la ti on and cab ling of the VHF ground sta ti on shall only be done by skil led avio nics personnel.Re mo val of the co vers of the VHF ground sta ti on and re pairs of this equip ment shall only be done by skil led avio nics per son nel.2.1.2 Pre-installation checkIn spect the unit pri or to in stal ling the VHF ground sta ti on in an ATC desk, to estab lish whet her it has suf -fe red da ma ge du ring trans por ta ti on.2.1.3 Visual inspectionBe fo re com men cing ope ra ti on vi su al ly exa mi ne the unit pay ing par ti cu lar at ten ti o n to the fol lo wing de -fects:1. Dirt, dents, scrat ches, cor ro si on or bro ken at ta ching parts, da ma ged paint work on hou sing, parts of the hou sing and pa nel.2. Dirt or scrat ches on the iden ti fi ca ti on pla te, front pa nel, LCD or ins crip tions.3. Dirt, bent or bro ken pins, dis pla ced in serts of plugs and so ckets.4. Dirt and me cha ni cal da ma ge to pushbut tons and ope ra ting knobs.2.1.4 Setting up the VHF ground stationThe VHF ground sta ti on can be set up eit her flat or in a slant pla ne (using the col lap si ble legs) on a tab -le.Af ter set ting up the equip ment shall be con nec ted to a po ten ti al equa li za ti on bar via an ear ting lead ha ving cross-section of 10 squa re mil li me ters. The earth ting con nec ti on is lo -ca ted on the rear pa nel of the equip ment.Be fo re con nec ting the ann ten na to the equip ment sta ti cal ly disch ar ge the an ten na and the an ten na fee der line by con nec ting both the con nec tor hou sing and the in ner con-ductor of the an ten na line to the earth ting con nec ti on on the rear pa nel of the equip -ment.TG480XX.01 Issue 04/07 Page 2-1TG480-(025)-(XX)
Con nect the mi cro pho ne to the mi cro pho ne jack.If the equipment has option 101 incorporated, the attached fuse has to be installed in the battery fuse holder (Refer to Installation of fuse for battery.Connect the cable plug “DC extern” to the jack “DC extern” on the rear panel of the VHF ground station. Connect the other end of the DC supply voltage.CAUTIONDo not confuse the polari ty!An ade qua te ly di men sio ned ca ble of 1,5 mm2 and hig her shall be used for his pur po se Con nect the supp lied po wer cord first to the VHF ground sta ti on and then to AC po wer outlet.NOTEThe re is no ON/OFF switch pro vi ded on the VHF ground sta ti on. If an ex ter nal supp ly vol -ta ge, eit her AC or DC is ap plied, the VHF ground sta ti on is in the stand by mode. By me -ans of the ON/STAND BY switch on the front pa nel the equip ment can be swit ched ON or in the stand by mode. If a bat te ry is in stal led in the VHF ground sta ti on and the AC- and DC-external supp ly vol ta ges are swit ching off and by mis ta ke the ON/STAND BY switch in the ON po si ti on, the equip ment is run ning on the in ter nal bat te ry.2.1.5 Installation of fuse for battery (option 101)To prevent unintended switching ON of the VHF ground station during transport and thus discharging the battery the fuse will be removed before shipping. Please insert the enclosed 12 amperes fuse into the fuse holder no. 2 on the back panel of the VHF ground station.2.1.6 Mechanical Installation of the VHF ground station in an ATC deskThe 19-inch tab le mo del may be in stal led in an Air traf fic con trol desk at any time. By me ans of a 4 mm Al len-type wrench re mo ve the for screws (1) and the hand les (4). Re fer to Fi gu re 2-1. Re mo ve the two adap tors “FRONT” (3) and re pla ce them by the 19-inch adap tors (5). The 19-inch adap tors are supp -lied with each unit.Fig. 2-1 Me cha ni cal In stal la ti on 19-inch adap torsPage 2-2 TG480XX.01 Issue 04/07TG480-(025)-(XX)
2.1.7 Hints for installation of the VHF ground station in an ATC deskRe fer to 2.1.4.2.1.8 Connection of external PTT switch or PTT foot switchThe PTT key can be con nec ted eit her to the mi cro pho ne jack on the front pa nel or to DB connector on the rear pa nel.Mi cro pho ne jack See fig. Jack J4 PTT DB connector Pin 4 PTT Pin 5 GND2.1.9 Installation of antenna systemFor sa fe ty rea sons the an ten na sys tem should be in stal led only by spe cia list per son nel or a spe cia list firm. The cor rect in stal la ti on and groun ding of the an ten na sys tem is an ess en ti al pre con di ti on for trou -ble free functio ning of the VHF ground sta ti on.2.1.10 Lightning protectionTo pro tect the VHF ground sta ti on from light ning stri ke or sta tic disch ar ge at the an ten n a, a light ning pro tec ti on ele ment is to be fit ted in the supp ly ca ble. The hou sing of the light ning pro tec ti on ele ment is to be con nec ted at the groun ding ter mi nals via an ade qua te ly si zed ca ble to the po ten ti al equa li sa ti on rail of the buil ding or ot her ground.Light ning pro tec ti on ele ment with N stan dard ter mi nal and epla ce ab le gas disch ar ge cartridge. Or der No. 887.870-277 Re pla ce ment car trid ge up to 40 W trans mit ter po wer Or der No. 887.889-2772.1.11 Grounding the VHF ground stationThe groun ding ter mi nal (M 5 screw with nut) which is cle ar ly mar ked with the groun ding sym b ol is lo ca -ted on the back. The VHF ground sta ti on is to be con nec ted via this ter mi nal to the po ten t i al equa li sa ti -on rail of the buil ding or sys tem to pro vi de a low oh mic and low in duc ti ve con nec ti on. An ade qua te ly di -men sio ned ca ble of 10mm2 co lou red green/yel low shall be used for this pur po se.Note: The relevant safety precautions shall be observed.2.1.12 Over Voltage ProtectionThe re is an over-voltage pro tec ti on functi on built-in. Af ter over-voltage pro tec ti on ac ti va tes, a mi ni mum time lap se of 1 min. from the mo ment of swit ching off the in put is re qui red be fo re any in p ut can turn on the supp ly again. Over-voltage pro tec ti on set ting is fi xed at 115% - 135% no mi nal. TG480XX.01 Issue 04/07 Page 2-3aTG480-(025)-(XX)
2.1.13 Tuning Instructions for the co-loca er Item Description: The co-location lter is a two section tunable BPF. Helical resonators and variable capacitors make up the resonant sections which have a tuning range from 116-150 MHz. Tuning Instructions: The co-location lter is normally shipped tuned to a center frequency of 116 MHz, if the channel is not spe ed. When units are to be tuned outside the factory, it is advisable to use a network or scalar analyzer set to the appropriate frequency range and span as required. There are 2 adjustments that control the resonant frequency of the lter. They are iden ed on the envelope drawing as "C1" and "C2," which are capacitors. The only tool required is a small slotted screwdriver. There is a protective cap over the capacitor with an access hole for a screwdriver. Using the screwdriver, rotating the capacitor in a clockwise direction increases the capacitance of that particular section, lowering the frequency of operation. Conversely, rotating the capacitor in a counterclockwise direction decreases the capacitance of that particular section, increasing the frequency of operation. When tuning the lter to a spe c center frequency, it is convenient to set the analyzer to the desired center frequency with a 5 or 10 mhz span. Depending on where the lter is presently tuned, adjust C1 accordingly until a peak in the response is noted on the analyzer at the desired center frequency. Adjust C2 in a similar fashion until the bandpass response is cenetered and the return loss null is about 18 dB. No other adjustments are required. Note: TG480 Series RS 232 Adapter must be used if Service port is to be used with a computer. TG480XX.01 Issue 04/07 Page 2-3bTG480-(025)-(XX)2.2.0 Service connector wiringPin1 Vcc2 TXD3 RXD4 SQL (COR)5 GND6 RF Tx7 ALARM8 V-FOR9 V-REFDescription 5 17152.2 Pin con nec ti on front /rear pla te
2.2.1 Pin connection mike connector J 25 (MIC)Pin Description1 GND2 MIKE HI3 HEADPHONE4 MIKE LO 5 PTT2.3 Pin con nec ti on rear side2.3.1 Pin connection remote control J 19 (REM/REC/RS232)Pin Description 1 + 15 VDC - Switched 2 Tx Data 3 Rx Data 4 PTT 5 GND 6 Rx Audio7 Tx Audio8 SQL -COR - Active Low9 REC AF10 AF GND 11 STD Mic 12 AF-HI 13 AF-LO14 AF-ASYM 15 DC GND2.3.2 VHF tunable Filter (Optional) DescriptionC1 VHF tunable filter adjustment C2 VHF tunable filter adjustmentPage 2-4 TG480XX.01 Issue 04/07 C1 C2VHF Tunable FilterTG480-(025)-(XX)
2.3.3 Pin connection recorder connector J 23 (RECORDER) Pin Description1 A u d i o T a p e2 GND3 PTT 24 PTT 15 PTT 32.3.4 DC EXT. INPUT connector wiring PLUG FOR MICRO JACK RF TEST Conntrol of the master oscillators TG480-(025)-(XX)Pin no it pirc seD1 - Negative2 NC + Positive3TG480XX.01 Issue 04/07 Page 2-5Ground AF PLUG FOR HEADSET JACK Plug for MICRO jack (J4) (∅ 5 . 2 5 m m ) : JK 3 3 - ELNO (150 00164) Plug PL68- 301 (150 00145) I t al lo ws t he tr ans mi tte r t o b e u sed fr om t he fr ont pa ne l. W he n t he o pe rat or pr ess es t he mi ke t r a n s m i s s i o n p u s h - b u t t o n h e c a n c o n t r o l t h e w h o l e u n i t i r r e s p e c t i v e o f t h e s i g n a l s t a t u s i n t h e r e m o t e c o n t r o l p l u g w i t h t h e e x c e p t i o n o f t h e t r a n s m i s s i o n i n h i b i t i o n . T w o m i k e s e n s i t i v i t i e s a r e p o s s i b l e (see Paragraph 5.2). Ground MicroP.T.T. key Plug for MICRO jack (J3) (∅ 6 . 3 5 m m ) : JK 3 4 - ELNO (150 00163) Plug PL55-300 (150 00146) T he l is ten ing is vi a a 60 0 o hms he ad set an d i t i s n ot r eq uir ed t o k ee p t he ear ph one s o n d uri ng tes t. The output level can be set with the volume potentiometer.
Fig. 2-5 Di men sions TG480 -( )Page 2-6 TG480XX.01 Issue 04/07Front ViewT op ViewTG480-(025)-(XX)
TG480 - ( XX )ReectometerSwitch BoardPower SupplyRF Power AmplierRF FilterTransceiverAntenna Filter - IN/OUT Filter - IN/OUT Recorder / Remote Fuse Fuse Fuse Aux DC PowerMHz Selector KHz Selector Mic/Phone MaintenanceData TerminalSPKR On-O Volume Power On-O
ReectometerSwitch BoardPower SupplyBattery ChargerTransceiverAntenna Recorder / Remote Fuse Fuse Fuse Aux DC PowerMHz Selector KHz Selector Mic/Phone MaintenanceData TerminalSPKR On-OVolume Power On-ORF Power AmplierBatteryBatteryTG480 - (XX) ) TG480-(10) LayoutTG480XX.01 Issue 04/07 Page 2-7a
TG480XX.01 Issue 04/07 Page 2-8 TG480 AC/DC CablingCable #1Cable #2Cable #3Cable #9Cable #11Cable #7Cable #16Cable #14Cable #18Cable #13Cable #17Cable #15Cable #10Rear PanelLegend:DC - Direct CurrentAC - Alternating CurrentPS - Power SupplyPA - RF Power Amplifier InputChassisFront PanelSwitch BoardSwitch Board123456789101112131415161718RF PARF PA+24V InGNDSwitchON/OFFSwitchON/OFF+ 24V -Connector+ 24V -Connector+24VGNDTransceiverTransceiver+15V InGNDFanFan+24V InGNDP.S.FuseP.S.FuseInOutDCFuseDCFuseInOutFanFan+24V InGNDPower SupplyPower Supply+15V Out+24V Out-24V Out+24V InGNDAC-NAC-LDC-DCFuseDC-DCFuseInOutACConnectorACConnectorAC-LAC-N
Page 2-9 TG480XX.01 Issue 04/07TG480-(025)-(XX)J2 J1AR PASingle Channel ConfigurationJ2 J1AR PAMulti Channel ConfigurationRF Cabling:RF Cable #33RF Cable #34RF Cable #31RF Cable #32RF Cable #36RF Cable #35RF Cable #37Legend: J1 - RF Filter Port 1 J2 - RF Filter Port 2 AR - AR4201 Antenna Port I/OPA - RF Power Amplifier InputJ2 J1AR PAANTRFI/ORFINRFOUTTransceiverPAJ1J2RF FILTERINOUTReflectometerRear PanelRF JUMPERChassis
Table of contentsSection 3 OPERATION Page3.1 Controls and indicators 3-13.2 Meaning of symbols on controls and indicators 3-33.2.1 Over-voltage protection 3-33.3 Operating instructions 3-53.3.1 Switching on the VHF ground station 3-53.3.2 Transmit/receive mode 3-53.3.3 Jamming of transmit button 3-73.3.4 Flashing of the LCD 3-73.3.5 Operation of the mode 1 and 2 3-73.3.5.1 Mode 1 (standard mode) 3-93.3.5.2 Mode 2 (display of fixed frequencies in the various channels) 3-103.3.6 Service mode (equipment configurations) 3-143.3.6.1 Entering up the service mode 3-153.3.6.2 Setting the squelch threshold 3-153.3.6.3 Setting the sidetone level, if connected a Head set 3-163.3.6.4 Setting the audio auxiliary level 3-163.3.6.5 Setting the hold time in the scan function 3-183.3.6.6 Release the frequency setting (channel selection only) 3-183.3.6.7 Release the frequency storage 3-193.3.6.8 Erasing stored channel frequency 3-193.3.6.9 Setting the "channel start" scanning range 3-193.3.6.10 Setting the "channel end" scanning range 3-203.3.6.11 Entry of password to interlock the equipment configuration 3-203.3.6.12 Programming of acknowledgement signal 3-203.3.6.13 Setting the dynamic mike input sensitivity 3-203.3.6.14 Channel priority ON/OFF switch (option) 3-213.3.6.15 FSqL (no function) 3-213.3.6.16 Block speaker key (LSP) function ON/OFF 3-223.3.6.17 Indication the Software spec. no.: and changes status 3-223.3.6.18 Standard equipment configuration settings in the service mode 3-223.3.6.19 Exiting of the service mode 3-223.4 Safety instructions 3-25 TG480XX.01 Issue 04/07 3-ITG480-(025)-(XX)
OPERATION1. Controls and indicators2. Mea ning of sym bols on con trols and in di ca torsA. ControlsFunction key Selection of modeExchange key Mode 1: Exchange of preset frequency and active frequency.Mode 3: Switching between temperature and operating voltage indication.Store key Storage of set frequency or in Mode 2 a change between the channel selection mode and scan mode.Squelch key Switching the squelch on or off. When the key is pressed, the bottom line indicated ON or OFFFrequency selector Switching the in di ca ted fr eq ue nc y i n 1 M H z. ( l ev e rswitch) steps or the sto ra ge channel upwards or downwards in steps of 10.Frequency selector Switches the indicated (lever switch) frequency in 25 kHz steps or the storage channel by 1 step in each case upwards or downwards, without carry over.INSTALLATION AND OPERATION AR 4201 - ( )Page 3 -1MHzKHzTG480-(025)-(XX)TG480XX.01 Issue 04/07 3-13.1 Controls and Indicators
B. LCD (liquid crystal display) elements(top line) Indication of active transmission/ reception frequency (active fre-quency).(top line) Transmission indication (transmis-sion button is pressed).(bottom line) Indication of preset transmission/ reception frequency (preset fre-quency).(bottom line) CH indication steady : in di ca tes the storage channel.(bottom line) CH indication flashes : if the initiated storage operation is not completed by pressing the store key.(bottom line) Indication that the selected stora-ge channel is not occupied.(bottom line) Indication of temperature in °Celsius or°FahrenheitIndication of supply voltage.Indicating segment flashes. Supply vol ta ge ≤ 10.5 V(bottom line) Indication of scan function(bottom line) Indication O N(bottom line) Indication OFFPage 3- 2-23-10-01 December 15/98TG 460A - (XX)TG 460A - (XX)TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-2
3.2 Meaning of symbols on controls and indicatorsON/standby switch Switching the ground station ON/OFFSpeaker switch Switching the speaker ON/OFFVolume control Adjustment of volumeAlarm LED Load mismatch > 2:1, Low power operation (red) TG480XX.01 Issue 04/07 Page 3-3Tx Comes on during transmission (red)SQL Comes on when there is an evaluatable reception signal (green)AC Comes on when AC supply voltage is applied (yellow)DC Comes on when the external DC supply voltage is applied (yellow)Speaker Service Maintenance portMic Microphone socket, Head setPhone Headset socketMic/Phone Microphone / Headset socket3.2.1 Over-voltage protectionThere is an over-voltage protection function built-in. After over-voltage protection activates, a minimum time lapse of 1 min. from the moment of switching off the input is required before any input can turn on the supply again. Over-voltage protection setting is fixed at 115% - 135% nominal. Mic Microphone socket, Head set Phone Headset socketMic/Phone Microphone / Headset socketC. Rear of unitANT 50 Ohm N female antenna connectorRemote1 15-pin D subminiature female Programming and remote control options Filter SMA female connectors. Filter IN & Filter OUT RF SMA female connectors. Core RF OUT & PA RF INOITG480-(025)-(XX)
Fig. 3-2 Rear sideTG480XX.01 Issue 04/07 Page 3-4 TG480-(025)-(XX)Ground terminal: Allows to connect the unit with the ground
3.3 Operating instructions3.3.1 Switching on the VHF ground station(1). Switch on the VHF ground station using the ON/OFF switch.CAUTIONAfter the VHF ground station is switched off using the On/STBY switch it goes into standby mode. All indicators go out except the AC or DC LED diode which continues to remain on depending on the type of supply voltagey. To remove all current from the VHF ground station requires the supply voltages to be switched off externally and the fuse of the built in battery removed from the fuse holder. If a battery is installed in the VHF Ground Station and the external supply voltages are disconnected and switch by mistake the ON/STANDBY switch in the ON position, the equipment is discharching the internal batteryPage 3-5 TG480XX.01 Issue 04/07Ope ra ting in (2) The segments of the LC display will blink with the power supply voltage having dropped down to 9V d.c. Following the blinking period the self-test is conducted. With low supply voltage this test period can last up to 20 seconds. If the test is positive, the transceiver automatically switches to the mode which was activated before switch-off.If the test result negative, the LCD will display the first fault report for approximately five seconds. If further faults were detected during test, the corresponding fault reports will be displayed additionally. After is playing the last fault report the equipment will switch automatically to the operating mode which was activated before switch-off.(3) The following fault signals are possible :E 1 Processor defectiveE 2 Synthesizer failedE 3 Fault in EE-PROM E 4 Controller (PIC) audio assembly defective(4) The various modes are comprehensively described, toghether with the setting of the equipment configuration in the service mode, in the Annex to the General Operating Instructions.B. Transmit/receive mode(1) Set the frequency of the local ground station in the preset display and press the exchange key. Rotate the VOL control to the centre position.NOTE : If the error message E2 appears in the top line during ope-ration, the synthesizer is not latching and further R/T operations no longer possible. The VHF transceiver must be check in the next service stationTG480-(025)-(XX)
(2) Operate the transmit button and call the ground station. Hold the micro-phone close to the lips for optimum speech transmission.NOTE : The arrow in the top line of the display indicates transmit mode. During transmission a protective circuit prevents a frequency change or frequency channel change even if the frequency selector switch is rotated. The keying functions on the control panel are also inhibited.(3) Set the correct reception volume using the VOL control whilst the ground station is answering.(4) Switch on the squelch (press SQL key again). Weak reception signals and reception noises are suppressed. The switch-on threshold of the squelch can be set in the service mode.NOTE : When changing the mode or the frequencies (PRESET- ACTIVE frequency) the change is automatically stored 2 second after the last change took place. Due to this delay changes which were made immediately before switching off the transceiver will not be memorized. Excepe-tition: M e mory actions as storage by pressing the STO key.C . Operation of intercom mode(1) Switch on the IC switch (external).(2) Operate the intercommunication (IC).(3) If necessary, the IC volume can be adjusted to the noise level of the air-craft (for adjustment refer to service mode).D . Au dio au xi lia ry inputA second and third radio unit (navigation receiver) can be monitored simultane -ously via the audio auxiliary input. During transmission the auxiliary input is switched off from the audio end amplifier. If necessary, the input sensitivity can be matched to the noise level of the aircraft (for setting refer to service mode).TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-6
E. Jamming of transmit button(1) The VHF- transceiver is fitted with a protective circuit to protect against jamming of the transmit button or a short circuit on the key supply line. For continuous transmissions exceeding two minutes the protective cir-cuit automatically switches from transmission to reception. This avoids the switched channel being blocked.(2) It is possible to activate the transmitter again immediately by re-pressing the transmit button. In the event of a fault, this is only possible after the short circuit has been cleared or the transmit button released.CAUTION : In Stock to be able to continue transmitting even with the transmit button jammed, the VHF Transceiver must be switched off and then back on again. After that the VHF transceiver then continues to operate in the transmit mode for a further two minutes.F. Flas hing of the LCD(1) If the power supply for the VHF transceiver drops below 10.5 V, the dis-play begins to flash. This flashing indicates, when operating on batteries for example, that the batteries require recharging. In practice the display begins to flash in the transmit mode because this is when the power consumption is greatest. If the power supply again increases abo ve 10.5 V, the flashing ceases.(2) Because the discharge curves of the batteries are very dependant on the type of battery, e.g. lead or nickel/cadmium accumulators, and the am bienttemperature also influences the discharge curves, it is not pos si ble to state precisely how long the VHF transceiver continues to be fully functional after the LCD begins to flash.(3) When transmitting, the batteries can be completely discharged after a few transmission cycles but during reception functioning is still guaran-teed in most cases for approximately 1 to 2 hours after the flashing be-gins. At 10 V supply voltage the unit still continues to function at reduced transmission power.G. Ope ra ti on of the va ri ous mo des(1) The VHF transceiver performs various functions which are covered by individual operating modes. The mode is selected by briefly pressing the MDE key. If it is pressed for a long time (more than 1 second) this se -lects mode 1.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-7
(a) Modes:1 Standard mode (display of active and preset frequency), setting the preset frequency and storing frequencies in the storage channels.2 Display of the storage frequencies in the storage channels or calling up the scan function.3 Display of temperature (option), power supply voltage and active frequency4 Service mode, for setting the equipment configuration.NOTE : When changing the mode or the frequencies (PRE SET- ACTIVEfrequency) the change is automatically stored 2 second after the last change took place. Due to this delay changes whichwere made immediately before switching off the transceiver will not be memorized. Exception: M e mory actions as storage by pressing the STO key.(2) Mode 1 (standard mode)(a) The last displayed active and preset frequencies appear in the LCD display.(b) The preset frequency (bottom line) is set using the MHz and kHz frequency selector switches.(c) When the exchange key is pressed, a change from the active to the preset frequency occurs. A further operation of the key cancels the frequency change.Storage operation(d) Pressing the STO key.The active frequency remains displayed in the top line.The VHF transceiver is ready to transmit and receive on this frequency. The preset frequency appears flashing in the bottom line.The required frequency can be set using the kHz frequency selector (steps of 1) or the MHz frequency selector (steps of 10).Pressing the STO key.The next free channel is shown flashing “ch”. Press the STO key. The selected frequency is stored in the free speaker channel and the storage process is ended. A no memory channel is free, the highest assign m e mory channel is selected automatically. TG 460A - (XX)TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-9
orselect the channel to be overwritten using the kHz frequency selector and press the STO key. This means that this channel will be overwritten with the new frequency and the storage process ended.NoteIf no input takes place within approximately seven seconds, t h e V H F transceiver switches to the previously set mode.Leaving the modeTo leave the mode, press the MDE key.(3) Mode 2 (display of fixed frequencies in the various channels)(a) Channel selection modeNOTE : If in mode 2 the scan function is switched on in the ser-vice mode, no storage operation can be activated in this mode.1 Select mode 2 using the MDE key. The last indicated storage channel appears in the bottom line of the LCD and the stored frequency is shown in the top line. The VHF transceiver is ready to transmit and receive on this frequency.2 Select required channel using the kHz frequency selector (steps of 1) or the MHz frequency selector (steps of 10). Free channel (no frequency stored) will be skipped when selected.3 If the Scan function is not activated, the storing function can be initiated by pressing the STO-Key. Refer to description of mode 1.Note The top line indicates the active frequency. The ac ti ve frequency indicated in the bottom line is flashing. S e lect the desired frequency can be set using the kHz frequen-cy selector or the MHz frequency selector.4 Exit from mode 2 is achieved by pressing the MDE key.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-10
(b) Scan functionNote: When operating the scan mode observe the regulations for the aviation radio service1 If the scan function is activated in the equipment configurati-on, pressing the STO key changes from the channel selection mode to the scan function. In the scan function, the frequency appears in the top line of the display and the associated chan -nel with the preset CS is shown in the bottom line.2 In the scan function, either all the occupied storage channels or a required range of storage channels can be scanned. The scanning range is specified in the service mode. The various storage channels are scanned in 200 ms intervals. If the mi-croprocessor finds a carrier in one of the channels, it holds a short on this channel and checks whether an eva lua tab le signal is present. If no evaluatable signal is present, it swit -ches to the next channel and then reverts to the 400 ms inter-vals (milliseconds range). In the event of an evaluatable re-ception signal being received the VHF transceiver remains on the storage channel until an evaluatable reception signal is no longer present.After a hold time 0 to 60 seconds (can be set in the service mode) the scanning of the storage channels a t 200 ms intervals begins again. The set squelch level is the criterium for an evaluatable reception signal, regardless of whether the squelch is activated or not.3 The VHF transceiver is equipped with channel priority. This function can be switched ON or OFF in service mode SF 18NOTE: If an adequate signal is required on the priority chann e l with option channel priority switched ON, the VHF transcei-ver automatically leaves the SCAN mode and is ready for transmission and receive on this channel. For return to the SCAN mode, again press the STO key.4 The scan function is terminated by pressing the STO key. The VHF transceiver then begins to operate again in the channel selection mode - the CS in the bottom line goes out and CH appears. Exit from mode 2 is accomplished in the same way as described in the channel selection mode.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-12
(4) Mode 3 Indication of supply voltage or temperature (option)When the exchange key is pressed, a change from the supply vol ta -ge and temperature indication occurs.NOTE : If no temperature sensor is connected, this mode is skip-ped when the exchange key is pressed.(a) The supply voltage and temperature is continuously measured. Indication occurs only in mode 3. The mode is selected by briefly pressing the MDE key once or several times (corresponding to the previous state) the active frequency on which the VHF transceiver is ready for operation is shown in the top line and the mea su red voltage/temperature is displayed in the bottom line. The display in °C or °F can be set in the service mode.(b) The active frequency (top line) can be changed using both frequen-cy selector switches. A storage operation is activated using the STO key. This procedure is described in mode 1.(c) To exit mode 3 it is necessary to press the MDE key.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-13
(5) Service mode (equipment configurations)The service mode is meant to enable the ground technicians to set the equipment configuration and must not be used in flight.(a) The following settings can be changed or set:S q L Setting the switch-on threshold of the squelch SIdE Setting the sidetone volume a U Setting the audio auxiliary volumeI C Setting the IC volumeSF5 Calibrating the temperature sensor SF6 Setting the addressable storage locations SF7 Setting the temperature display in °C or °F SF8 Switching on the scan functio nSF9 Setting the hold time after completion of a call in the scan modeS F 1 0 Release the frequency setting (channel selection only)S F 1 1 Release the frequency stor a g eS F 1 2 Erasure of stored frequenciesS F 1 3 Setting the “channel start” of the scanning range S F 1 4 Setting the “channel end” of the scanning range COdE Entering a password to interlock the equipment configuration.S F 1 6 Dynamic mike input sensitivityS F 1 7 Inhibiting the transmit mode for one or more memory channelS F 1 8 Channel priority ON/OFF switch (option) F S q L No function S F 2 0 Speaker muting switch ON/OFF S F 2 1 Increase the audio power output - . - Indication the software version and change statusNOTE : The equipment configuration SqL, SIdE, AU, IC and SF16 settings given in the service mode are set by the factory as basic settings using standard values. If rever-sion to the standard values is required, the portable VHF Transceiver must be switched off and switched on again simultaneously pressing the STO and MDE keys. This does not overwrite the password.If no temperature sensor is connected, the mode SF5 and SF 7 is skipped when the mode key is pressed.If the SF8 scan function is not activated, than the func-tion SF9, SF13 and SF14 will not be displayed.The settings SF 17 and SF 18 are optionen. When the optionen are not activated, the mode SF17 and SF 18 is skipped when the mode key is pressed.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-14
(b) Calling up the service modeSwitch off the VHF transceiver. Hold the mode key (MDE) pressed and at the same time switch on the unit. The VHF transceiver switches to the service mode without a unit test. SqL appears in the top line and the switch on threshold of the squelch is shown on the bottom line.NOTES :lThe set tings are se lec ted in steps by brief ly pres sing the MDE key in the ser vi ce mode. If the MDE key is pres sed at the end of the set -ting, the set ting SqL then ap pe ars. If a di rect re turn to the SqL set -ting is re qui red the MDE key must be pres sed for at least one se -cond.lIf set tings are not ac ti vat ed, (e.g. scan functi on) this mode is skip -ped by pressing the mode key.lIn the ser vi ce mode the VHF trans cei ver ope ra tes in de pen dent ly of the set tings on the con trol pa nel, on the fre quen cy which was last set as the ac ti ve fre quen cy. Wenn the PTT-Key is pressed in the service mode, the dis play in di ca tes in the top line the ac ti ve fre -quencylThe user can interlock his equipment configuration settings with the aid of a pass word. The VHF trans cei ver is de li ver ed from the fac to ry wit hout a pass word. Sec ti on COdE “En try of pass word for in ter loc king the equip ment con fi gu ra ti on” des cri bes how to en ter a password.1 Setting the squelch thresholda If function SqL is called up, the following displays appear.Top line SqLBottom line 00 to 200 Standard value 130 (HI se n sitivity LO)b By means of the kHz switch, the squelch threshold can be altered upwards or downwards in steps of 5. The set va-lue is stored by pressing the STO key.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-15
2 Setting the sidetone lev e la Call up the SIdE function using the MDE key. The follo-wing displays appear.Top line SIdEBottom line 00 to 63 Standard v a lue 32 (LO level HI)b Using the kHz switch, The sidetone level can be altered upwards or downwards. The set value is stored by pres-sing the STO key.Upwarts serial No.: 1500 Press the PTT key and set the correct sidetone volume using the kHz switch. The side-tone level can be altered upwards or downwards. The set value is stored by pressing the STO key.3 Setting the audio auxiliary levela Call up the AU function using the MDE key. The follo-wing displays appear.Top line A UBottom line 00 to 63 Standard v a lue 63 (LO level HI)b Using the kHz switch, alter the audio auxiliary level up-wards or downwards. The set value is stored by pressing the STO key.4 Setting the IC lev e la Call up the IC function using the MDE key. The foll o -wing displays appear :Top line I CBottom line 00 to 63 Standard v a lue 32 (LO level HI)b The IC level can be changed upwards or downwards using the kHz switch. The set value is stored by pressing the STO key.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-16
5 Calibrating the temperature sensora If no temperature sensor is connected, this mode is skip-ped when the mode key is pressed.b Calibration is only necessary if the sensor has been retro -spectively fitted or replaced.c After calling up using the MDE key, the following display appears.Top line SF 5Bottom line Measured temperatured Measure the ambient air temperatur of the sensor by me -ans of a suitable thermometer and set temperatur display on the LCD. To this measured value by mean of the kHz frequency selector. The entry is stored by pressing the STO key and of the temperature sensor is calibrated .6 Setting addressable storage locations 1 to 99.a Call up the function using the MDE key. The following display then appears.Top line SF 6Bottom line 1 to 99b The number of the storage channel between 1 to 99 can be selected as required using the kHz switch and stored by pressing the STO key. If the number of storage chan-nels is limited and if channels outside the limited a r e a have already been used, these can no longer be call e d up. The data in the channels outside the area continues to remain stored and it can be re-used at any time by lifting the restricted area.7 Setting the temperature display in the °C or °F.a If no temperature sensor is connected, this mode is skip-ped when the mode key is pressed.b Call up function SF 7 using the MDE key. The following displays appear :Top line SF 7Bottom line °C of °Fc The required display is selected using the kHz switch and the selection is stored by pressing the STO key.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-17
8 Switching on the scan functiona If the SF8 scan function is not activated, than the function SF9, SF13 and SF14 will not be displayed.b Call up function SF 8 using the MDE key. The following display appears.Top line S F 8Bottom line OFF or Onc Select the required function using the kHz switch and store the selection by pressing the STO key.OFF = scan function offOn = scan function on9 Setting the hold time in the scan function (only displayed, if SF8 is activated).a Call up function SF 9 using MDE key. The following dis-plays appear :Top line S F 9Bottom line 0 .0 to 60.0b The hold time can be set as required between 0,0 ..0,9 seconds using the kHz seletor switch and between 0..60 seconds using the MHz selector switch. The set value is stored by pressing the STO key.1 0 Inhibiting the frequency setting (channel selection only).a Call up function SF 10 using the MDE key. The following displays appear :Top line SF 10Bottom line OFF or Onb Select the required function using the kHz key and stor e the function by pressing the STO key.OFF= Frequency setting not possible. The VHF transcei-ver can only work on the frequencies stored in the indivi-dual channels.On = Frequency setting possible (standard setting).TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-18
11 Inhibiting the frequency storagea Call up function SF 11 using the MDE key. The following display appears.Top line S F 1 1Bottom line OFF or Onb Select the required function using the kHz switch and store the selection by pressing the STO key.OFF = The storage of frequencies in the individual chan- nels is not possible. The VHF transceiver can only work on the set frequency.On = Storage of frequencies in the individual channels is possible (standard setting)12 Erase stored frequenciesa Call up function SF 12 using the MDE key. The following display appears.Top line S F 1 2Bottom line CH channel numberb Select the channel to be erased using the kHz (steps of 1) or MHz (steps of 10) switch. The stored frequency is erased by pressing the STO key.13 Setting the “channel start” scanning range (only displayed, if SF8 is activated).a Call up function SF 13 using the MDE key. The following displays appear :Top line S F 1 3Bottom line CS channel numberb Select the starting channel, using the kHz (steps of 1) or MHz (steps of 10) switch, at which the scan function is to begin. The starting channel is stored by pressing the STO key.NoteWhen this function is set OFF, the active and preset fre -quencies which were set last remains are available in Mode 1TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-19
1 4 Setting the “channel end” scanning range.(only displayed, if SF8 is activated).a Call up function SF 14 using the MDE key. The following displays appear :Top line SF 14Bottom line CS channel numberb Using the kHz (steps of 1) or MHz (steps of 10) switch, select the end channel at which the scan function is to stop. Store the end channel by pressing the STO key.1 5 Entry of password to interlock the equipment configuration.a Call up the COdE function using the MDE key. The foll o -wing display appears.Top line COdE 15Bottom line 0b Set any 4-digit numerical code using the kHz (steps of 1) or MHz (steps of 10) switch. Store the numerical code by pressing the STO key.NOTE : As soon as a password is given an 0 appears in the bottom line when the service mode is called up. The numerical code must then be input using the MHz or kHz switch. If the VHF transceiver detects a false numerical code, it automatically switches to the last mode.If the password is to be erased or changed, this is done by calling up the service mode using the old password. The COdE functio n is then chosen and either an 0 is entered everywhere or the changed numerical code is entered.1 6 Setting the dynamic mike input sensitivitya Call up function SF 16 using the MDE key. The following displays appears :Top line SF 16Bottom line 00 bis 63 Standard v a lue 32 (LO sensitivity HI)b The dynamic mike input sensitivity can be changed upwards or down-wards using the kHz switch. The set value is stored by pressing the STO key.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-20
17 Inhibiting the transmit mode for one or more memory chann e l (option)a Call up function SF 17 using the MDE key. The following displays appears :Top line S F 1 7Bottom line CS channel number b Using the kHz (steps of 1) or MHz (steps of 10) switch, select the desired channel for inhibiting the transmit mode. Store the channel by pressing the STO key. Seve-ral channels can be selected on priority channels. The let ter T appears in the bottom line before CS. When the STO key is pressed again, the inhibiting transmit mode is canceled. The letter T is not appears in the bottom line before CS.18 Channel priority ON/OFF switch (Option)a Call up function SF 18 using the MDE key. The following displays appears :Top line S F 1 8Bottom line CS channel number b Using the kHz (steps of 1) or MHz (steps of 10) switch, select the desired channel. Store the channel by pres -sing the STO key. Several channels can be selected on priority channels.19 FSqL no function20 Speaker muting switch ON/OFFa Call up function using the MDE key. The following displays appears :Top line SF20Bottom line OFF or OnOFF = Speaker m u ting on On = Speaker always switched onb Select the function using the kHz switch. Store t h e required function by pressing the STO key. This selection becomes active after ending the service mode.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-21
2 1 Increase the audio power outputa Call up function using the MDE key. The following displays appears :Top line S F 2 1Bottom line OFF or OnOFF = Standard audio power output On = maximum audio power outputb Select the function using the kHz switch. Store the required function by pressing the STO key. This selection is active immediately by pressing the STO key.2 2 Indication the software spec. no.: and change statusa Call up function using the MDE key. The following displays appear.Top line software spec. no.: and chang e status MicroprocessorBottom line software spec. no.: and change status CO-Miroprocessor (PIC)2 3 Basic settings in the service modeThe volume settings given in the service mode are set by the factory as basic settings using standard values. If reversion to the standard values is required, the VHF transceiver must be switched off and switched on again by simultaneously pres sing the STO and MDE keys.2 4 Ending of the service modeThe VHF transceiver must be switched off to end the service mode.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-22
4. Safety instructionsThe following instructions must be followed for safe operation of the VHF transcei -ver:A. Switch off the unit when star ting or shut ting down en gi nes.B. A speech test is to be performed be fo re start up and it should be no ted that if the speech test is carried out clo se to the ground sta ti on the re sults may be positive even if the antenna cable is broken or short-circuited. At a distance of 5 to 10 km no connection will be made.C. Use a loud voi ce for speech com mu ni ca ti on and hold the mi cro pho ne clo se to the lips. Ot her wi se ca bin noise can be intrusive and make understanding diffi-cult.D. Use only mi cro pho nes or he ad sets which are suit ab le for use in air craft. In air-craft made of wood or syn the tic ma te ri als or in gli ders or he li cop ters, in co ming radiation on the equip ment an ten na can af fect the in te gra ted am pli fier of the mi cro pho ne (feed back). This is noticeable in the ground station by whist ling and/or heavy distortion. The described disturbances can occur in different ways on the different transmission channels.E. Transmit buttons can stick and cau se con ti nu ous transmission. Therefore, when transmitting ensure that the arrow in the top line on the left next to the active fre quen cy dis play dis ap pe ars when the trans mis si on but ton is re lea sed.TG480-(025)-(XX)TG480XX.01 Issue 04/07 3-23
BlankTG480-(025)-(XX)TG480XX.01 Issue 04/07 3-24
3.4 Safety instructionsThe following instructions must be followed for safe operation of the VHF station:l A speech test is to be performed before startup and it should be noted that if the speech test is carried out close to the ground station the results may be positive even if the antenna cable is broken or short-circuited. At a distance of 5 to 10 km no connection will be made.l Use a loud voice for speech communication and hold the microphone close to the lips. Otherwise cabin noise can be intrusive and make understanding difficult.l Use only microphones or headsets which are suitable for use in aircraft. Incoming radiation on the equipment antenna can affect the integrated amplifier of the microphone (feedback). This is noticeable in the ground station by whistling and/or heavy distortion. The described disturbances can occur in different ways on the different transmission channels.l Transmit buttons can stick and cause continuous transmission. Therefore, when transmitting ensure that the LED display (red) disappears when the transmission button is released.l High voltages inside refer servicing to qualified personall Disconnect power inout before servicingWarningPage 3-25 TG480XX.01 Issue 04/07TG480-(025)-(XX)
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(20) *TG480-20 S/N _________ QF-154 Rev.0 01/18/08 Page 1 of 5 FINAL INSPECTION / TEST TG480-(20) VHF Transceiver *PART NUMBER: 0940.436-926 SERIAL NUMBER: __________ 1. TRANSMITTER TEST TX. Carrier Power (Without Modulation): VSWR 1:1 VSWR 2:1 Freq. Offset Requirements: 20 +/- 5W < 1200 Hz 118.000 MHz _________ W _________ W __________ Hz 127.500 MHz _________ W _________ W __________ Hz 136.975 MHz _________ W _________ W __________ Hz Modulation and Distortion: *Dynamic Mike (1 kHz / 10mV audio input) VSWR 1:1 VSWR 2:1 Mod.% Dist.% Mod.% Dist.% Requirements: 85 +/-5 % < 5% 85 +/-10% < 10% 118.000 MHz ______ ______ ______ ______ 127.500 MHz _____ ______ ______ ______ 136.975 MHz ______ ______ ______ ______ Over modulation: ________ (none) ________ (none) *Standard Remote Mike (1 kHz / 775mV audio input) VSWR 1:1 VSWR 2:1 Mod.% Dist.% Mod.% Dist.% Requirements: 85 +/-5 % < 5% 85 +/-10% < 10% 118.000 MHz ______ ______ ______ ______ 127.500 MHz _____ ______ ______ ______ 136.975 MHz ______ ______ ______ ______ Over modulation: ________ (none) ________ (none) Min. Requirements Max. Measurements Modulation AF Response: *(127.5 MHz, 775mV, 1 kHz) fmod.= 100 Hz 20 ______ dB 350 Hz 6 ______ dB 500 Hz ______ dB 1000 Hz 0 ___0__ dB
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(20) *TG480-20 S/N _________ QF-154 Rev.0 01/18/08 Page 2 of 5 2500 Hz 6 ______ dB 4000 Hz 20 ______ dB Transmitter Compressor: *(10mV - 30 mV, 1kHz) dif. fmod.= 5 _______ % *(775mV – 1V, 1kHz) dif. fmod.= 5 _______ % Automatic Shutdown: 2 minutes _______ min Tx Alarm: OK _______ 2. RECEIVER TEST Sensitivity (SINAD) (1000 Hz, 30% mod., AF Level = 775mV, 3uV EMF) 118.000 MHz 12dB ________dB 127.500 MHz 12dB ________dB 136.975 MHz 12dB ________dB SQL Sensitivity: (Squelch opens at): *5uV ________uV AGC Characteristic: (127.5 MHz, 1000 Hz/30%, AF Level=775mV) (5 uV – 100 mV EMF) 3dB ______dB Bandwidth: (127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output) (Increase RF output by 6dB) Higher frequencies 8 ______kHz Lower Frequencies 8 ______kHz Min. Requirements Max. Measurements Selectivity: (127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output) 127.475 MHz 60 ______dB 127.525 MHz 60 ______dB (127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output) (Increase RF output by 40dB) Higher frequencies 17 ______kHz
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(20) *TG480-20 S/N _________ QF-154 Rev.0 01/18/08 Page 3 of 5 Lower frequencies 17 ______kHz Audio Output Power and Distortion factor: (127.500 MHz / 100 uV / 1000 Hz / 85%) AF at 600 Ohms >7 ______V Distortion @ 7V: 10 ______% Audio Reponse: (127.5 MHz / 100uV / 1000Hz / 30%) 350 Hz -6 ______dB 1000 Hz 0 dB 2500 Hz -6 ______dB 4000 Hz 18 ______dB 3. CONTROL PANEL TEST Display: (all digits flashing) OK ________ MDE Key: OK ________ Freq. Selection: 1MHz OK ________ 1KHz OK ________ Exchange Key: OK ________ Service Mode: - SF1 Setting the switch to ON Threshold of the squelch OK ________ - SF2 Cal. The temp. sensors OK ________ - SF3 Setting the addressable storage location OK ________ - SF4 Setting temperature display OK ________ - SF5 Switching on the scan function OK ________ - SF6 Setting the hold timer after completion of a call in the scan mode OK ________ - SF7 Inhibiting the freq. setting (Channel selection only) OK ________ - SF8 Inhibiting the frequency storage OK ________ - SF9 Erasure of stored frequencies OK ________ - SF10 Setting the “channel start” of
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(20) *TG480-20 S/N _________ QF-154 Rev.0 01/18/08 Page 4 of 5 the scanning mode OK ________ - SF11 Setting the “channel end” of the scanning mode OK ________ -SF12 Entering a password to interlock the equipment configuration OK ________ -SF13 Set Sensitivity for Dynamic Mike OK ________ -SF14 Inhibit Tx for Memory-Channels OK ________ -SF15 Set Channel Priority ON/OFF OK ________ -SF16 Set Squelch Fast Mode OK ________ Panel illumination: OK ________ AC/DC Switchover OK ________ 4. ACCESORY FUNCTIONS a. 15 VDC (500mA) 12 16 ________ b. RS 232 OK ________ c. PTT (Gnd-Active) OK ________ d. COR (Low-Active) OK ________ e. Tx Audio (%Mod, 0dB/775mV) 70 95 ________ Over modulation: none ________ f. Rx Audio (dB) -9 0 1 ________ g. Recorder Output Tx Audio (dB) -9 0 1 ________ Rx Audio (dB) -9 0 1 ________
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(20) *TG480-20 S/N _________ QF-154 Rev.0 01/18/08 Page 5 of 5 The TG480-20 has been tested successfully and is ready for operation. Test Equipment Used: DESCRIPTION SERIAL NUMBER MARCONI RADIO TEST 132628/032 TEKTRONIX 485 OSCILLOSCOPE B144152 BIRD 4431 WATTMETER 8849 DCR-25B DC POWER SUPPLY 1256 Tested by: ___________________ Title: _________________ Date:___________ Inspected by: _________________ Title: ________________ Date:___________ BECKER AVIONICS, INC. 10376 USA Today Way Phone: 954-450-3137 Miramar, FL 33025 Fax : 954-450-3206 Remarks: AR4201 S/N: ____________ RF Power Amplifier S/N: ______________ Reflectometer S/N: ______________ Bandpass Filer S/N: _______________ SINGLE CHANNEL OPTION Frequency: ___________ MHz Internal band pass filter Yes:______ No:______
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(50) *TG480-50 S/N ____________ QF-155 Rev. 0 01/18/08 Page 1 of 5 FINAL INSPECTION / TEST TG480-(50) VHF Transceiver *PART NUMBER: 0940.435-926 SERIAL NUMBER: __________ 1. TRANSMITTER TEST TX. Carrier Power (Without Modulation): VSWR 1:1 VSWR 2:1 Freq. Offset Requirements: 50 +/- 5 W < 1200 Hz 118.000 MHz _________ W _________ W __________ Hz 127.500 MHz _________ W _________ W __________ Hz 136.975 MHz _________ W _________ W __________ Hz Modulation and Distortion: *Dynamic Mike (1 kHz / 10mV audio input) VSWR 1:1 VSWR 2:1 Mod.% Dist.% Mod.% Dist.% Requirements: 85 +/-5 % < 5% 85 +/-10% < 10% 118.000 MHz ______ ______ ______ ______ 127.500 MHz _____ ______ ______ ______ 136.975 MHz ______ ______ ______ ______ Over modulation: ________ (none) ________ (none) *Standard Mike (1 kHz / 775mV audio input) VSWR 1:1 VSWR 2:1 Mod.% Dist.% Mod.% Dist.% Requirements: 85 +/-5 % < 5% 85 +/-10% < 10% 118.000 MHz ______ ______ ______ ______ 127.500 MHz _____ ______ ______ ______ 136.975 MHz ______ ______ ______ ______ Over modulation: ________ (none) ________ (none) Min. Requirements Max. Measurements Modulation AF Response: *(127.5 MHz, 775mV, 1 kHz) fmod.= 100 Hz 20 ______ dB 350 Hz 6 ______ dB 500 Hz ______ dB 1000 Hz 0 ___0__ dB
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(50) *TG480-50 S/N ____________ QF-155 Rev. 0 01/18/08 Page 2 of 5 2500 Hz 6 ______ dB 4000 Hz 20 ______ dB Transmitter Compressor: *(10mV - 30 mV, 1kHz) dif. fmod.= 5 _______ % *(775mV – 1V, 1kHz) dif. fmod.= 5 _______ % Automatic Shutdown: 2 minutes _______ min Tx Alarm: OK _______ 2. RECEIVER TEST Sensitivity (SINAD) (1000 Hz, 30% mod., AF Level = 775mV, 3uV EMF) 118.000 MHz 12dB ________dB 127.500 MHz 12dB ________dB 136.975 MHz 12dB ________dB SQL Sensitivity: (Squelch opens at): *5uV ________uV AGC Characteristic: (127.5 MHz, 1000 Hz/30%, AF Level=775mV) (5uV – 100 mV EMF) 3dB ______dB Bandwidth: (127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output) (Increase RF output by 6dB) Higher frequencies 8 ______kHz Lower Frequencies 8 ______kHz Min. Requirements Max. Measurements Selectivity: (127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output) 127.475 MHz 60 ______dB 127.525 MHz 60 ______dB (127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output) (Increase RF output by 40dB)
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(50) *TG480-50 S/N ____________ QF-155 Rev. 0 01/18/08 Page 3 of 5 Higher frequencies 17 ______kHz Lower frequencies 17 ______kHz Audio Output Power and Distortion factor: (127.500 MHz / 100 uV / 1000 Hz / 85%) AF at 600 Ohms >7 ______V Distortion @ 7V: 10 ______% Audio Reponse: (127.5 MHz / 100uV / 1000Hz / 30%) 350 Hz -6 ______dB 1000 Hz 0 dB 2500 Hz -6 ______dB 4000 Hz 18 ______dB 3. CONTROL PANEL TEST Display: (all digits flashing) OK ________ MDE Key: OK ________ Freq. Selection: 1MHz OK ________ 1KHz OK ________ Exchange Key: OK ________ Service Mode: - SF1 Setting the switch to ON Threshold of the squelch OK ________ - SF2 Cal. The temp. sensors OK ________ - SF3 Setting the addressable storage location OK ________ - SF4 Setting temperature display OK ________ - SF5 Switching on the scan function OK ________ - SF6 Setting the hold timer after completion of a call in the scan mode OK ________ - SF7 Inhibiting the freq. setting (Channel selection only) OK ________ - SF8 Inhibiting the frequency storage OK ________
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(50) *TG480-50 S/N ____________ QF-155 Rev. 0 01/18/08 Page 4 of 5 - SF9 Erasure of stored frequencies OK ________ - SF10 Setting the “channel start” of the scanning mode OK ________ - SF11 Setting the “channel end” of the scanning mode OK ________ -SF12 Entering a password to interlock the equipment configuration OK ________ -SF13 Set Sensitivity for Dynamic Mike OK ________ -SF14 Inhibit Tx for Memory-Channels OK ________ -SF15 Set Channel Priority ON/OFF OK ________ -SF16 Set Squelch Fast Mode OK ________ Panel illumination: OK ________ AC/DC Switchover OK ________ 4. ACCESORY FUNCTIONS a. 15 VDC (500mA) 12 16 ________ b. RS 232 OK ________ c. PTT (Gnd-Active) OK ________ d. COR (Low-Active) OK ________ e. Tx Audio (%Mod, 0dB/775mV) 70 95 ________ Over modulation: none ________ f. Rx Audio (dB) -9 0 1 ________ g. Recorder Output Tx Audio (dB) -9 0 1 ________ Rx Audio (dB) -9 0 1 ________
BECKER AVIONICS, INC. QUALITY SYSTEM FORM TEST REPORT: TG480-(50) *TG480-50 S/N ____________ QF-155 Rev. 0 01/18/08 Page 5 of 5 The TG480-50 has been tested successfully and is ready for operation. Test Equipment Used: DESCRIPTION SERIAL NUMBER MARCONI RADIO TEST 132628/032 TEKTRONIX 485 OSCILLOSCOPE B144152 BIRD 4431 WATTMETER 8849 DCR-25B DC POWER SUPPLY 1256 Tested by: ___________________ Title: _________________ Date:___________ Inspected by: _________________ Title: ________________ Date:___________ BECKER AVIONICS, INC. 10376 USA Today Way Phone: 954-450-3137 Miramar, FL 33025 Fax : 954-450-3206 Remarks: AR4201 S/N: ____________ RF Power Amplifier S/N: ______________ Reflectometer S/N: ______________ Bandpass Filer S/N: _______________ SINGLE CHANNEL OPTION Frequency: ___________ MHz Internal band pass filter Yes:______ No:______

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