Becker Avionics TG480 VHF/AM Transceiver User Manual TITEL 3

Becker Avionics, Inc. VHF/AM Transceiver TITEL 3

Installation and Operation

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VHF Ground Station
TG480-(025)-(XX)
Installation and Operation
Manual
Issue 1
TG480-(025)-(XX)
April 2007
BECKER AVIONICS • 10376 USA Today Way • Miramar, FL 33025
Phone 954-450-3137 • Fax 954-450-3206
FIRST ISSUE AND CHANGES
Issue . . .
1 . . . . April 2007
LIST OF EFFECTIVE PAGES
Page No.:
Date :
Title
04/07
1 -I - 1-II
1-1 - 1-8
04/07
04/07
2-I - 2-II
2-1 - 2-7
04/07
04/07
3-I - 3-II
3-1 - 3-25
04/07
04/07
Page No.:
© 2007 by Becker Avionics, Inc.
All rights reserved
Date :
TG480-(025)-(XX)
Table of contents
Section
1.1
1.2
1.3
1.3.1
1.4
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.4.8
1.4.9
1.4.10
1.5
Introduction
Purpose of equipment
General description
Short description CORE Module
Technical Data
Technical data general, power supply
Technical data environmental
Technical data receive
Technical data transmitter
Technical data mechanical
Technical data battery operation (option 101)
Option 2-wire remote control (option 102)
Option multi-wire remote control (option 103)
Option tape recorder control (option 104)
Scope of delivery
Accessories
TG480XX.01 Issue 04/07
GENERAL INFORMATION
Page
1-1
1-1
1-1
1-2
1-4
1-4
1-5
1-5
1-6
1-6
1-7
1-7
1-7
1-7
1-8
1-8
1-I
TG480-(025)-(XX)
INTENTIONALLY BLANK
1-I
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
Section
1.1
GENERAL INFORMATION
Introduction
This manual TG480XX.01 describes the VHF ground station TG480-(025)-(XX).
The manual TG480XX.01 "Installation and Operation" contains the following sections :
Section
1.2
DV 480XX.01
General Information
Installation
Operation
Purpose of equipment
The 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 description
The 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% /5060 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 - ( ).
TG480XX.01 Issue 04/07
Page 1-1
TG480-(025)-(XX)
GENERAL DESCRIPTION
1.3.1 General description of CORE Module
1-2
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.
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
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 channels can be set to between 0 and 60 seconds.
M.
Special functions
VHF transceiver contains some special functions which can be set in the
service mode.
Adjustment of volume IC, sidetone, AF auxiliary and the sensitivity of dynamic microphone.
The switch-on threshold of the squelch can be set in the service mode.
The frequency setting can be inhibited. The VHF transceiver then operates onlH.The VHF transceiver also contains a monitoring stage for the supply voltage.
The storage of frequencies in the storage channels can be inhibited.
Stored frequencies can be erased.
Access to the service mode can be interlocked with a 4-digit password.
The scan function can be switched on.
TG480XX.01 Issue 04/07
Page 1-3
TG480-(025)-(XX)
1.4
Technical data
1.4.1
Technical data general, power supply
AC-Operating voltage
115 V or 230 V ± 10% 50/60 Hz
DC-Operating voltage
TG480 - (10)
12 V . . . 16 V TG480
TG480 - (20), TG480 - (50)
TG480 - (05)
TG480 - (10)
TG480 - (20)
24 V +20% -10% Current
consumption at 115 V AC
max. Rx = 65 mA
max. Tx = 300 mA
max. Rx = 250 mA
max. Tx = 1,5 A
max. Rx = 250 mA
max. Tx = 1,8 A
Current consumption at 230 V AC
TG480 - (10)
TG480 - (20)
TG480 - (50)
max. Rx = 170 mA
max. Tx = 0,9 A
max. Rx = 170 mA
max. Tx = 1.1A
max. Rx = 170 mA
max. Tx = 3A
Current consumption at 13,75 V DC
TG480 -(10)
max. Rx = 200 mA
max. Tx = 1800 mA
Current consumption at 24 V DC
TG480 - (20)
TG480 - (50)
Fuse
max. Rx = 200 mA
max. Tx = 4,5 A
max. Rx = 200 mA
max. Tx = 9,0 A
Battery int./U = 12.0 V (optional)
max. Rx = 240 mA
max. Tx = 1800 mA
PS 24V
DC 24V
DC-DC 15V
AC 120V
AC 120V Spare
15A
15A
5A
10A
10A
Protection against wrong polarity
TG480XX.01 Issue 04/07
at DC external voltage
Page 1-43
TG480-(025)-(XX)
Frequency range
118.000 MHz - 136.975 MHz
Frequency tolerance
≤ 15 ppm
Channel spacing
25 kHz
Number of channels
760
Number of channel memories
99
Antenna impedance
50 Ω
1.4.2
Technical data environmental
Operating temperature range
- 15° C . . . + 50° C
Storage temperature range
- 40° C . . . + 70° C
Humidity (operating)
≤ 95% / 40° C without condensation
Humidity (storage)
≤ 95% / 40° C
Operating altitude
Operating
Transport
- 200 . . . 3500 m
- 200 . . . 10000 m
1.4.3
Technical data receiver
Sensitivity
m = 60 % / 1 kHz
≤ 5 µV (EMF) S + N ≥ 10 dB
Selectivity
± 17 kHz
± 25 kHz
≥ 40 dB
≥ 60 dB
Intermodulation
≥ 65 dB
IF frequency
21.4 MHz
IF bandwith
≥ ± 8 kHz
Squelch
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 04/07
TG480-(025)-(XX)
1.4.4
Technical data transmitter
Transmitter power output VSWR 1:1
TG480 - (10)
TG480 - (20)
TG480 - (50)
≥ 10W
≥ 20W
≥ 50W
Tolerable VSWR
2:1
Modulation type
A3E
Modulation factor
≥ 80% and ≤ 100%
Distortion
≤ 10 %
≤ 15% TG480 - (50)
Duty cycle
1 minutes transmit- and
4 minutes receive mode
Carrier noise level
≥ 35 dB
Spurious emissions
≤ 54 dBm (4 nW)
Dynamic Mic.
≤ 2mV symm .
(dynamic compressor)
1.4.5
Technical data mechanical
Dimensions
Case
19 Zoll unit
448 x 350 x 89 mm
483 x 350 x 89 mm
Antenna connector
N-female
Weight (without options)
78.5 kg
TG480XX.01 Issue 04/07
Page 1-6
TG480-(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
transmit/receive ratio of 1 : 9
standby mode
typ. 3 hrs.
typ. 5 hrs.
typ. 8 hrs.
Number of internal batteries
Battery type
Lead battery 2,2 Ah
1.4.7
Option 2-wire remote control (option 102)
Max. length of wire
≤ 10 km
Impedance
600 Ω
1.4.8
Option multi-wire remote control
Max. length of wire
1.4.9
Option recorder control OP 104
Audio output recorder
Page 1-7
≤ 100m
100 mV at 47kΩ (adjustable)
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
1.4.10
Scope of delivery
VHF ground station TG480 - (10 )
or
VHF ground station TG480 - (20 )
or
VHF ground station TG480 - (50 )
Stock no.: 940.436-926
Fuse 3.15 AT
Stock no.: 788.074-392
Fuse 4 AT
Stock no.: 769.304-392
Fuse 10 AT
Stock no.: 912.109-392
Cable connector (DC connection)
Stock no.: 724.890-277
Mains cord (AC connection)
Stock no.: 295.728-277
1.5
Stock no.: 940.437-926
Stock no.: 940.435-926
Accessories
Antenna connector (N-male)
Stock no.: 716.502-277
Hand dyn. microphone with
cable with 5-pole DIN connector 1PM012
Stock no.: 344.214-951
Shure 514B dyn. mike
Stock no.: 901.402-350
Lighting protection, IS-50NXCO
Stock no.: 962.704-283
Antenna 1A049
Stock no.: 812.064-952
Notch-Filter
Stock no.: 889.407-918
DTR 40-FD Remote Control (CPI)
Stock no.: 919.442-951
DTP1-C, DC term. panel (CPI)
Stock no.: 919.443-951
TG480XX.01 Issue 04/07
Page 1-8
TG480 A - ( XX )
Table of contents
Section
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.1.10
2.1.11
2.1.12
2.1.13
2.2
2.2.0
2.2.1
2.3
2.3.1
2.3.2
2.3.3
2.3.4
Installation in a tower ATC desk
General
Pre-installation check
Visual inspection
Setting up the VHF-ground station
Installation of fuse for battery (Option 101)
Mechanical installation of VHF ground station in an ATC desk
Hints for installation of the VHF ground station in an ATC desk
Connection of external PTT switch or PTT foot switch
Installation of antenna system
Lightning protection
Grounding the VHF ground station
Over-voltage protection
Tuning Instructions for the co-location filter
Pin connection front / rear panel
Pin connection service connector
Pin connection mike connector J 25 (MIC)
Pin connection rear side
Pin connection remote control J 19 (REMOTE CONTROL)
VHF tunable filter
Pin connection tape recorder connector J 23 (TAPE RECORDER)
DC EXT. INPUT connector wiring
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-4
2-4
2-4
2-4
2-5
2-5
Fig. 2-1
Fig. 2-2
Fig. 2-5
Mechanical installation 19-inch adaptors
Installation wiring diagram tape recorder
Dimensions TG480 - ( )
2-2
2-5
2-7
TG480XX.01 Issue 04/07
INSTALLATION
Page
2-I
TG480-(025)-(XX)
INTENTIONALLY BLANK
2-II
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
Section
INSTALLATION
2.1
Installation in a Tower ATC desk
2.1.1
General
The 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.
Caution
In 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 check
In 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 suffe red da ma ge du ring trans por ta ti on.
2.1.3
Visual inspection
Be 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 defects:
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 station
The 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 table.
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 equipment.
TG480XX.01 Issue 04/07
Page 2-1
TG480-(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.
CAUTION
Do 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.
NOTE
The re is no ON/OFF switch pro vi ded on the VHF ground sta ti on. If an ex ter nal supp ly volta ge, eit her AC or DC is ap plied, the VHF ground sta ti on is in the stand by mode. By means 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 desk
The 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 move the two
adap tors “FRONT” (3) and re pla ce them by the 19-inch adap tors (5). The 19-inch adap tors are supplied with each unit.
Fig. 2-1 Me cha ni cal In stal la ti on 19-inch adap tors
Page 2-2
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
2.1.7
Hints for installation of the VHF ground station in an ATC desk
Re fer to 2.1.4.
2.1.8
Connection of external PTT switch or PTT foot switch
The 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
Pin 5
2.1.9
PTT
GND
Installation of antenna system
For 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 precon di ti on for trouble free functio ning of the VHF ground sta ti on.
2.1.10
Lightning protection
To 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 protec 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. 887.889-277
2.1.11
Grounding the VHF ground station
The 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 cated 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 tion 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 dimen 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 Protection
The 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 2-3 a
TG480-(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.
2.2
Pin con nec ti on front /rear pla te
Service connector wiring
2.2.0
Pin
Description
Vcc
TXD
RXD
SQL (COR)
GND
RF Tx
ALARM
V-FOR
V-REF
15
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 2-3 b
TG480-(025)-(XX)
2.2.1
Pin connection mike connector J 25 (MIC)
Pin
Description
GND
MIKE HI
HEADPHONE
MIKE LO
PTT
2.3
Pin con nec ti on rear side
2.3.1
Pin connection remote control J 19 (REM/REC/RS232)
Pin
Description
+ 15 VDC - Switched
Tx Data
Rx Data
PTT
GND
Rx Audio
Tx Audio
SQL -COR - Active Low
REC AF
10
AF GND
11
STD Mic
12
AF-HI
13
AF-LO
14
AF-ASYM
15
DC GND
2.3.2
VHF tunable Filter (Optional)
C1
C2
Description
C1
VHF tunable filter adjustment
C2
VHF tunable filter adjustment
Page 2-4
VHF Tunable Filter
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
2.3.3
Pin connection recorder connector J 23 (RECORDER)
Pin
Description
Au dio Tape
GND
PTT 2
PTT 1
PTT 3
2.3.4
DC EXT. INPUT connector wiring
Pin
D e s c ription
- Negative
NC
+ Positive
Plug for MICRO jack (J3) (∅ 6.35 mm):
JK34 - ELNO (150 00163) Plug PL55-300 (150 00146)
The listening is via a 600 ohms headset and it is not required to keep the earphones on during test.
The output level can be set with the volume potentiometer.
Ground
AF
PLUG FOR HEADSET JACK
Plug for MICRO jack (J4) (∅ 5.25 mm):
JK33 - ELNO (150 00164) Plug PL68-301 (150 00145)
It allows the transmitter to be used from the front panel. When the operator presses the mike
transmission push-button he can control the whole unit irrespective of the signal status in the
remote control plug with the exception of the transmission inhibition.
Two mike sensitivities are possible (see Paragraph 5.2).
Ground
Micro
P.T.T. key
PLUG FOR MICRO JACK
RF TEST Conn
trol of the
TG480XX.01
master oscillators
Issue 04/07
Page 2-5
TG480 -(025) -(XX)
Front View
T op View
Fig. 2-5 Di men sions TG480 -( )
Page 2-6
TG480XX.01 Issue 04/07
RF Power Amplifier
Antenna
Transceiver
MHz Selector
KHz Selector
Mic/Phone Maintenance
Data Terminal
Switch Board
Reflectometer
RF Filter
Aux DC Power
Volume SPKR On-Off Power On-Off
Power Supply
Filter - IN/OUT Filter - IN/OUT Recorder / Remote Fuse Fuse Fuse
TG480 - ( XX
Power Supply
Battery Charger
Antenna
Transceiver
TG480XX.01 Issue 04/07
MHz Selector
KHz Selector
Mic/Phone Maintenance
Data Terminal
Switch Board
RF Power Amplifier
Recorder / Remote Fuse Fuse Fuse
Volume SPKR On-Off Power On-Off
Battery
Battery
Aux DC Power
TG480-(10) Layout
TG480 - (XX)
Reflectometer
Page 2-7a
TG480 AC/DC Cabling
Cable #2
Switch Board
10
11
12
13
14
15
16
17
18
+15V In
GND
Transceiver
Cable #3
Cable #7
Cable #9
+24V In
GND
RF PA
Cable #11
Cable #13
Cable #17
Cable #16
Fan
+24V In
GND
Fan
In
Out
P.S.
Fuse
Cable #14
Cable #1
ON/OFF
Switch
In
Out
DC-DC DC
Fuse
Fuse
Cable #18
Cable #10
+24V In
GND
Chassis
Power Supply
+15V Out
+24V Out
-24V Out
+24V In
GND
AC-N
AC-L
In
Out
Rear Panel
+24V
GND
+ 24V AC
Connector Connector
Cable #15
Front Panel
AC-L
AC-N
Legend:
DC - Direct Current
AC - Alternating Current
PS - Power Supply
PA - RF Power Amplifier Input
TG480XX.01 Issue 04/07
Page 2-8
TG480-(025)-(XX)
Multi Channel
Configuration
Single Channel
Configuration
J2
J1
AR
PA
J2
J1
AR
PA
RF Cabling:
Chassis
Trans
ceiver
PA
RF
IN
RF
OUT
Page 2-9
J2
J1
AR
PA
OUT
RF FILTER
RF Cable #35
J1
RF Cable #34
J2
RF Cable #32
RF Cable #31
RF Cable #33
IN
Reflectometer
RF Cable #36
RF
I/O
RF JUMPER
RF Cable #37
ANT
Rear Panel
Legend:
J1 - RF Filter Port 1
J2 - RF Filter Port 2
AR - AR4201 Antenna Port I/O
PA - RF Power Amplifier Input
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
Table of contents
Section
3.1
3.2
3.2.1
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.5.1
3.3.5.2
3.3.6
3.3.6.1
3.3.6.2
3.3.6.3
3.3.6.4
3.3.6.5
3.3.6.6
3.3.6.7
3.3.6.8
3.3.6.9
3.3.6.10
3.3.6.11
3.3.6.12
3.3.6.13
3.3.6.14
3.3.6.15
3.3.6.16
3.3.6.17
3.3.6.18
3.3.6.19
Controls and indicators
Meaning of symbols on controls and indicators
Over-voltage protection
Operating instructions
Switching on the VHF ground station
Transmit/receive mode
Jamming of transmit button
Flashing of the LCD
Operation of the mode 1 and 2
Mode 1 (standard mode)
Mode 2 (display of fixed frequencies in the various channels)
Service mode (equipment configurations)
Entering up the service mode
Setting the squelch threshold
Setting the sidetone level, if connected a Head set
Setting the audio auxiliary level
Setting the hold time in the scan function
Release the frequency setting (channel selection only)
Release the frequency storage
Erasing stored channel frequency
Setting the "channel start" scanning range
Setting the "channel end" scanning range
Entry of password to interlock the equipment configuration
Programming of acknowledgement signal
Setting the dynamic mike input sensitivity
Channel priority ON/OFF switch (option)
FSqL (no function)
Block speaker key (LSP) function ON/OFF
Indication the Software spec. no.: and changes status
Standard equipment configuration settings in the service mode
Exiting of the service mode
3-1
3-3
3-3
3-5
3-5
3-5
3-7
3-7
3-7
3-9
3-10
3-14
3-15
3-15
3-16
3-16
3-18
3-18
3-19
3-19
3-19
3-20
3-20
3-20
3-20
3-21
3-21
3-22
3-22
3-22
3-22
3.4
Safety instructions
3-25
TG480XX.01 Issue 04/07
OPERATION
Page
3-I
3.1
Controls and Indicators
TG480-(025)-(XX)
INSTALLATION A N D O P E R A T I O N
AR 4201 - ( )
OPERATION
1.
Controls and indicators
2.
Mea ning of sym bols on con trols and in di ca tors
A.
Controls
Function key
Selection of mode
Exchange key
Mode 1:
Exchange of preset frequency
and active frequency.
Mode 3:
Switching between temperature
and operating voltage i n dication.
MHz
KHz
TG480XX.01 Issue 04/07
Store key
Storage of set frequency or in
Mode 2 a change between t he
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 OFF
Frequency selector
Switching the in di ca ted
frequency in 1 MHz. (leve r
switch) steps or the sto ra ge
channel upwards or downwards in
steps of 10.
Frequency selector
Switches t h e i n dicated (lever
switch) frequency in 25 kHz
steps or the storage channel by
1 step in each case upwards or
downwards, without carry over.
Page 3 -1
3-1
TG480-(025)-(XX)
B.
LCD (liquid crystal display) elem e n t s
(top line)
Indication of active transmission/
reception frequency (active frequency).
(top line)
Transmission indication (transm i ssion butt o n is pressed).
(bottom line)
Indication of preset transmission/
reception frequency (preset frequency).
(bottom line)
CH indication steady : in di ca tes
the storage channel.
(bottom line)
CH indication flashes :
if the initiated storage operation i s
not completed by pressing t h e
store key.
(bottom line)
Indication that the selected storage channel is not occupied.
(bottom line)
Indication of temperature in
°Celsius or
°Fahrenheit
Indication of supply voltage.
Indicating s e g ment flash e s .
Supply vol ta ge ≤ 10.5 V
(bottom line)
Indication of scan function
(bottom line)
Indication O N
(bottom line)
Indication O F F
TG480XX.01 Issue 04/07
3-2
TG480-(025)-(XX)
3.2
Meaning of symbols on controls and indicators
ON/standby switch
Switching the ground station ON/OFF
Speaker switch
Switching the speaker ON/OFF
Speaker
C.
Volume control
Adjustment of volume
Alarm LED
Load mismatch > 2:1, Low power operation (red)
Tx
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)
Service
Maintenance port
Mic
Microphone socket, Head set
Phone
Headset socket
Mic/Phone
Microphone / Headset socket
Rear of unit
Mic
ANT
Microphone socket, Head set
50 Ohm N female antenna connector
Phone
Remote1
female
Mic/Phone
Filter
Headset socket
15-pin D subminiature
Programming and remote control options
Microphone / Headset socket
SMA female connectors. Filter IN & Filter OUT
RF
3.2.1
SMA female connectors. Core RF OUT & PA RF IN
Over-voltage protection
There 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.
TG480XX.01 Issue 04/07
Page 3-3
TG480-(025)-(XX)
Ground terminal: Allows to connect the unit
with the ground
Fig. 3-2 Rear side
TG480XX.01 Issue 04/07
Page 3-4
TG480-(025)-(XX)
3.3
Operating instructions
3.3.1
Switching on the VHF ground station
(1). Switch on the VHF ground station using the ON/OFF switch.
CAUTION
After 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
the ON/STANDBY switch in the ON position, the equipment is discharching the
Ope ra tingmistake
in
internal battery
(2)
The segments of the LC displa y will blink with the pow e r supply voltage
having dropped down to 9V d.c. Following the blinking per i o d the self-test
i s c o n ducted. With low supply voltage this test per i o d 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 disp l a y the first fault report for
approximately five seconds. If further faults were detected during test,
the corresponding fault reports will be displayed additionally. After i s
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 :
E1
E2
E3
E4
(4)
B.
Processor defective
Synthesizer failed
Fault in EE-PROM
Controller (PIC) audio assembly defective
The various mod e s are comprehensively described, t o g hether with the
setting of the equipment c o n figuration in the service mode, in the Ann e x
to the General Operating Instructions.
Transmit/receive mode
(1)
Set the frequency of the local ground station in the preset disp l a y a n d
press the exchange key. Rotate t h e V O L c o n trol to the centre position.
NOTE :
Page 3-5
If the error message E2 appears in the top line dur i n g operation, the synthesizer is not latching and further R/T
operations no longer possible. The VHF transceiver must
be check in the next service station
TG480XX.01 Issue 04/07
TG480-(025)-(XX)
(2)
Operate the transmit b u t ton and call the ground station. Hold the mic r ophone close to the lips for optimum speech transmission.
NOTE :
The arr o w 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
o n t h e c o n trol 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 :
C.
D.
When changing the mode or the frequencies
(PRESET- ACTIVE frequency) the change is automatically
stored 2 s e cond after the last change took place. Due to
this delay changes which were made immediately bef o r e
switching off the transceiver w i l l n o t b e m e morized. E x cepetition: M e mory actions as storage by press i n g the STO key.
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 aircraft (for adjustment refer to service mode).
Au dio au xi lia ry input
A second and third radio unit (navigation receiver) c a n b e m o nitored simultane ously via the audio auxiliary i n put. During transmission the auxiliary input i s
switched off from the audio end amplifier. If necessary, the inp u t sensitivity
can be matched to the noise level of the aircraft (for setting refer to service
mode).
TG480XX.01 Issue 04/07
3-6
TG480-(025)-(XX)
E.
Jamming of transmit button
(1)
The VHF- transceiver is fitt e d with a protective circuit to protect against
jamming of the transmit butt o n or a short circuit on the key suppl y line.
For continuous transmissions exceeding two minutes the protective circuit automatically switches from transmission to reception. This avoids
the switched channel being blocked.
(2)
It is possible t o a c tivate 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 :
F.
G.
In Stock to be able to continue transmitting even with the
transmit b u tton jammed, the VHF Transceiver must be
switched off and then back on again. After that the VHF
transceiver then continues to o p e rate in the transmit m o d e
for a further two minutes.
Flas hing of the LCD
(1)
If the power suppl y for the VHF transceiver drops below 10.5 V, the display begins to flash. This flashing indicates, w h e n o p e rating o n b a tteries
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 pow e r supply again increases abo ve
10.5 V, the flashing c e a ses.
(2)
Because the discharge c u r ves 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 c o n tinues to be full y
functional after th e L C D b e gins to flash.
(3)
When transmitting, the batteries can be completely discharged after a
few transmission cycles but during reception functioning is still guaranteed in most cases for approximately 1 to 2 hours after the flashing begins. At 10 V supply voltage the unit still continues to function at
reduced transmission pow e r .
Ope ra ti on of the va ri ous mo des
(1)
The VHF transceiver performs various functions which are cove re d by
individual operating modes. The mode is selected by briefly pressing the
MDE key. If it is press e d for a long time (more than 1 second) this se lects mode 1.
TG480XX.01 Issue 04/07
3-7
TG480-(025)-(XX)
(a)
Modes:
Standard mode (display of active and preset frequency),
setting the preset frequency and storing frequencies in the
storage channels.
Display of the storage frequencies in the storage channels or
calling up the scan function.
Display of temperature (option), pow e r suppl y voltage and
active frequency
Service mode, for setting the equipment configuration.
NOTE :
(2)
When changing the mode or the frequencies (PRE SETACTIVEfrequency) 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 w i l l not be memorized. Exception: M e mory
actions as storage by pressing the STO key.
Mode 1 (standard m o d e )
(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 chang e .
Storage operation
(d)
Pressing t h e S T O k e y .
The active frequency remains displayed in the top line.The
VHF transceiver is ready to transmit a n d r e ceive on this frequency.
The preset frequency appears flashing in the bott o m line.
The required frequency can be set using the kHz frequency selector
(steps of 1) or the MHz frequency selector (steps of 10).
Pressing t h e S T O k e y .
The next free channel is shown flashing “ch”. Press the STO key.
The selected frequency is stored in the free speak e r channel a n d
the storage process is ended. A n o m e mory channel is free, the
highest assign m e mory channel is selected automatically.
TG480XX.01 Issue 04/07
3-9
TG480-(025)-(XX)
or
select the channel to be overwritten using the kHz frequency selector and
press the STO key. This mea n s that this channel will be overwritten with
the new frequency and the storage process end e d .
Note
If no input takes place within approximately seven seconds, t h e V H F
transceiver switches to the previously s e t m o d e .
Leaving the mode
T o leave the mode, press the MDE key.
(3)
Mode 2 (display of fixed frequencies in the various chann e l s )
(a)
Channel selection m o d e
NOTE :
Select mode 2 using the MDE key. The last indicated storage
channel app e a rs in the bottom line of the LCD and the stored
frequency is shown in the top line. The VHF transceiver i s
ready to transmit a n d r e ceive on this frequency.
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.
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
TG480XX.01 Issue 04/07
If in mode 2 the scan function is switched on in the service mode, no storage operation can be activated in this
mode.
The top line indicates the active frequency. The ac ti ve
frequency i n dicated in the bottom line is flashing. S e lect
the desired frequency can be set using the kHz freq u e n cy selector or the MHz frequency selector.
Exit from mode 2 is achiev e d by pressing t h e M D E k e y .
3-10
TG480-(025)-(XX)
(b)
Scan function
Note:
When operating the scan mode observe the regulations
for the aviation radio service
If the scan function is activated in the equipment configuration, pressing the STO key chang e s from the channel selection
mode to the scan functio n . 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.
In the scan function, either all the occupied storage channels
o r a r e quired 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 microprocessor finds a carrier in one of the channels, i t h o l d s a
short on this channel and checks whether a n e v a 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 intervals (milliseconds range). In the event of an evaluatable r eception signal being received the VHF transceiver remains on
the storage channel until an evaluatable reception signal is no
longer p r e sent.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 i s the
criterium for a n e v a luatable reception signal, regardless of
whether the squelch is activated or not.
The VHF transceiver is equipped with channel priority. This
function can be switched ON or OFF in service mode SF 18
NOTE:
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.
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.
TG480XX.01 Issue 04/07
3-12
TG480-(025)-(XX)
(4)
Mode 3 Indication of suppl y voltage or temperature (option)
When the exchange key is pressed, a c h a n ge from the supply vol tage and temperature indication occurs.
NOTE :
If no temperature sensor is connected, th i s mo d e is ski pped when the exchange key is press e d .
(a)
The suppl y voltage and temperature is continuously measured.
Indication occurs only in mode 3. The mode is selected by briefl y
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 m o d e .
(b)
The active frequency (top line) can be changed using both freq u e ncy selector switches. A storage operation is activated using the
STO key. This procedure i s d e s cribed in mode 1.
(c)
To exit mode 3 it is necessary to press the MDE key.
TG480XX.01 Issue 04/07
3-13
TG480-(025)-(XX)
(5)
Service mode (equipment configurations)
The service mode is mea n t 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:
SqL
SIdE
aU
IC
SF5
SF6
SF7
SF8
SF9
SF10
SF11
SF12
SF13
SF14
COdE
SF16
SF17
SF18
FSqL
SF20
SF21
- . NOTE :
Setting the switch-on threshold of the squelch
Setting the sidetone volume
Setting the audio auxiliary volume
Setting the IC volume
Calibrating the temperature sensor
Setting the addressable storage locations
Setting the temperature display in °C or °F
Switching on the scan functio n
Setting the hold time after completion of a call in the
scan mode
Release the frequency setting (channel selection o n l y )
Release the frequency stor a g e
Erasure of stored frequencies
Setting the “channel start” of the scanning r a n ge
Setting the “channel end” of the scanning range
Entering a password to interlock the equipment
configuration.
Dynamic mike input sensitivity
Inhibiting the transmit mode for one or more memory
channel
Channel priority ON/OFF switch (opt i o n )
No function
Speaker muting s w i t c h O N / O F F
Increase t h e a u dio power output
Indication the software version and change status
The equipment configuration SqL, SIdE, AU, IC and
SF16 settings g i ven i n t h e s e r vice mode are set by the
factory as bas i c settings using standard val u e s . If reversion 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 sens o r i s c o n nected, the mode SF5
and SF 7 is skipp e d when the mode key is pressed.
If the SF8 scan function is not activated, than the function 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 press e d .
TG480XX.01 Issue 04/07
3-14
TG480-(025)-(XX)
(b)
Calling up the service mode
Switch 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 :
The 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 setting, the set ting SqL then ap pe ars. If a di rect re turn to the SqL setting is re qui red the MDE key must be pres sed for at least one se cond.
If set tings are not ac ti vat ed, (e.g. scan functi on) this mode is skipped by pressing the mode key.
In 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 frequency
The 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.
Setting the squelch threshold
If function SqL is called up, the following displays appear.
Top line
Bottom l i n e
TG480XX.01 Issue 04/07
SqL
00 to 200
(HI sensitivity LO)
Standard value 130
By mea n s of the kHz switch, the squelch threshold can be
altered upwards or downwards in steps of 5. The set value is stored by pressing t h e S T O k e y .
3-15
TG480-(025)-(XX)
Setting the sidetone l e v e l
Call up the SIdE function using the MDE key. The following displays appear.
Top line
SIdE
Bottom line
00 to 63
(LO level HI)
Standard v a lue 32
Using the kHz switch, The sidetone level c a n b e a l tered
upwards or downwards. The set value is stored by pressing the STO key.
Upwarts serial No.: 1500 Press the PTT key and set the
correct s i detone volume using the kHz switch. The sidetone level c a n b e a l tered upwards or downwards. The set
value is stored by pressing the STO key.
Setting the audio auxiliary level
Top line
AU
Bottom line
00 to 63
(LO level HI)
Standard v a lue 63
Using the kHz switch, alter th e a u dio auxiliary level upwards or downwards. The set value is stored by pressing
the STO key.
Setting the IC lev e l
TG480XX.01 Issue 04/07
Call up the AU function using the MDE key. The following displays appear.
Call up the IC function using the MDE key. The foll o wing displays appear :
Top line
IC
Bottom line
00 to 63
(LO level HI)
Standard v a lue 32
The IC level can be changed upwards or downwards
using the kHz switch. The set value is stored by pressing
the STO key.
3-16
TG480-(025)-(XX)
Calibrating the temperature s e n s o r
If no temperature sens o r i s c o n nected, this mode is skipped when the mode key is press e d .
Calibration is only necessary i f t h e s e n sor has been ret r o spectively fitted or replaced.
After calling up using the MDE key, the following displ ay
appears.
Bottom l i n e
Measured temp e r a t u r e
Measure the ambient air temperatur of the sensor b y m e 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 sens o r is calibrated .
Call up the function using the MDE key. The following
display then appears.
Top line
SF 6
Bottom l i n e
1 to 99
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 o f s t o rage chan nels is limited and if channels outside the limited a r e a
have alre a d y 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.
Setting the temperature display in the °C or °F.
If no temperature sens o r i s c o n nected, this mode is skipped when the mode key is press e d .
Call up function SF 7 using the MDE key. The following
displays appear :
TG480XX.01 Issue 04/07
SF 5
Setting addressable storage locations 1 to 99.
Top line
Top line
SF 7
Bottom l i n e
°C of °F
The required display is selected using the kHz switch and
the selection is stored by pressing the STO key.
3-17
TG480-(025)-(XX)
Switching on the scan function
If the SF8 scan function is not activated, than the function
SF9, SF13 and SF14 will not be displayed.
Call up function SF 8 using the MDE key. The following
display appears.
Top line
SF 8
Bottom line
OFF or On
Select the required function using the kHz switch and
store the selection by pressing the STO key.
OFF = scan function off
On = scan function on
Setting the hold time in the scan function (only displayed, if
SF8 is activated).
10
Call up function SF 9 using MDE key. The following dis plays appear :
Top line
SF 9
Bottom line
0 .0 to 60.0
The hold time can be set as required b e t ween 0,0 ..0,9
seconds using the kHz seletor switch and between 0..60
seconds using the MHz selector switch. The set value i s
stored by pressing the STO key.
Inhibiting the frequency setting (channel selection only).
Call up function SF 10 using the MDE key. The foll o w i n g
displays appear :
Top line
SF 10
Bottom line
OFF or On
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 individual channels.
On = Frequency setting p o s sible (standard setting).
TG480XX.01 Issue 04/07
3-18
TG480-(025)-(XX)
11
Inhibiting the frequency storage
Call up function SF 11 using the MDE key. The following
display app e a r s .
Top line
SF 11
Bottom l i n e
OFF or On
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 c hannels 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 frequencies
13
Call up function SF 12 using the MDE key. The following
display app e a r s .
Top line
SF 12
Bottom l i n e
CH channel number
Select the channel to be erased using the kHz (steps of
1) or MHz (steps of 10) switch. The stored frequency i s
erased by pressing the STO key.
Setting th e “c h a n nel start” scanning range (only displayed, if
SF8 is activated).
Call up function SF 13 using the MDE key. The following
displays appear :
Top line
SF 13
Bottom l i n e
CS channel number
Select the starting channel, using the kHz (steps of 1) or
MHz (steps of 10) switch, at which the scan function i s t o
begin. The starting channel is stor e d by press i n g the STO
key.
Note
When this function is set OFF, the active and preset fre quencies which were set last remains are available in
Mode 1
TG480XX.01 Issue 04/07
3-19
TG480-(025)-(XX)
14
Setting the “channel end” scanning range.(only displayed, if
SF8 is activated).
15
Call up function SF 14 using the MDE key. The foll o w i n g
displays appear :
Top line
SF 14
Bottom line
C S c h a n nel numb e r
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.
Entry of password to interlock the equipment configuration.
Call up the COdE function using the MDE key. The foll o wing display appears.
Top line
COdE 15
Bottom line
Set any 4-digit numerical code using the kHz (steps of 1)
or MHz (steps of 10) switch. Store the numerical c o d e b y
pressing the STO key.
NOTE :
16
Setting the dynamic mike inp u t s e n sitivity
TG480XX.01 Issue 04/07
As soon as a password i s g i ven an 0 app e a rs
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 eras e d or changed,
this is done by calling u p th e s e r vice mode
using the old password. The COdE functio n
is then chos e n and either a n 0 i s e n tered
everywhere or the changed numerical code
is ente re d .
Call up function SF 16 using the MDE key. The foll o w i n g
displays app e a r s :
Top line
SF 16
Bottom line
00 bis 63
Standard v a lue 32
(LO sensitivity HI)
The dynamic mike inp u t s e n sitivity can be chang e d
upwards or down-wards using the kHz switch. The set
value is stored by pressing the STO key.
3-20
TG480-(025)-(XX)
17
Inhibiting the transmit mode for one or more memory chann e l
(option)
18
Call up function SF 17 using the MDE key. The following
displays appears :
Top line
SF 17
Bottom l i n e
CS channel number
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. Several channels can be selected on priority channels. T h e l e t
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.
Channel priority ON/OFF switch (Option)
Call up function SF 18 using the MDE key. The following
displays appears :
Top line
SF 18
Bottom l i n e
CS channel number
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 function
20
Speaker muting switch ON/OFF
Call up function using the MDE key. The following
displays appears :
Top line
SF20
Bottom l i n e
OFF or On
OFF = Speaker m u ting on
On = Speaker always switched on
TG480XX.01 Issue 04/07
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.
3-21
TG480-(025)-(XX)
21
Increase the a u dio power output
Call up function using the MDE key. The following
displays app e a r s :
Top line
SF21
Bottom line
OFF or On
OFF = Standard audio power output
O n = m a ximum audio power outp u t
22
Indication the software spec. no.: and change status
23
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.
Call up function using the MDE key. The following
displays appear.
Top line
software spec. no.: and chang e
status Microprocessor
Bottom line
software spec. no.: and change status
CO-Miroprocessor (PIC)
Basic settings in the service mode
The volume settings giv e n 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.
24
Ending of the service m o d e
The VHF transceiver must be switched off to end the service
mode.
TG480XX.01 Issue 04/07
3-22
TG480-(025)-(XX)
4.
Safety instructions
The 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 brok e n 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 difficult.
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 o r i n g l i 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.
TG480XX.01 Issue 04/07
3-23
TG480-(025)-(XX)
Blank
TG480XX.01 Issue 04/07
3-24
TG480-(025)-(XX)
3.4
Safety instructions
The following instructions must be followed for safe operation of the VHF station:
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.
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.
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.
Transmit buttons can stick and cause continuous transmission. Therefore, when
transmitting ensure that the LED display (red) disappears when the transmission
button is released.
Warning
High voltages inside refer servicing to qualified personal
Disconnect power inout before servicing
Page 3-25
TG480XX.01 Issue 04/07
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(20)
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
Mod.%
Dist.%
VSWR 2:1
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
Mod.%
Dist.%
VSWR 2:1
Mod.%
Dist.%
Requirements:
85 +/-5 %
< 5%
118.000 MHz
______
______
______
______
127.500 MHz
_____
______
______
______
136.975 MHz
______
______
______
______
Over modulation:
________ (none)
Min.
85 +/-10%
< 10%
________ (none)
Requirements
Max.
Measurements
Modulation AF Response:
*(127.5 MHz, 775mV, 1 kHz)
fmod.=
100
350
500
1000
Hz
Hz
Hz
Hz
*TG480-20 S/N _________
20
______ dB
______ dB
______ dB
___0__ dB
QF-154 Rev.0 01/18/08
Page 1 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(20)
2500
4000
Hz
Hz
______ dB
______ dB
Transmitter Compressor:
*(10mV - 30 mV, 1kHz) dif. fmod.=
_______ %
*(775mV – 1V, 1kHz)
_______ %
20
dif. fmod.=
Automatic Shutdown:
2 minutes
Tx Alarm:
_______ min
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
3dB
______dB
AGC Characteristic:
(127.5 MHz, 1000 Hz/30%, AF Level=775mV)
(5 uV – 100 mV EMF)
Bandwidth:
(127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output)
(Increase RF output by 6dB)
Higher frequencies
______kHz
Lower Frequencies
______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
*TG480-20 S/N _________
17
______kHz
QF-154 Rev.0 01/18/08
Page 2 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(20)
Lower frequencies
17
______kHz
Audio Output Power and Distortion factor:
(127.500 MHz / 100 uV / 1000 Hz / 85%)
AF at 600 Ohms
______V
>7
Distortion @ 7V:
10
______%
Audio Reponse:
(127.5 MHz / 100uV / 1000Hz / 30%)
350 Hz
-6
______dB
1000 Hz
2500 Hz
-6
4000 Hz
18
dB
______dB
______dB
3. CONTROL PANEL TEST
Display: (all digits flashing)
OK
________
MDE Key:
OK
________
1MHz
OK
________
1KHz
OK
________
OK
________
- 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
________
Freq. Selection:
Exchange Key:
Service Mode:
- SF10 Setting the “channel start” of
*TG480-20 S/N _________
QF-154 Rev.0 01/18/08
Page 3 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(20)
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
Over modulation:
f.
Rx Audio (dB)
95
none
________
________
-9
________
Tx Audio (dB)
-9
________
Rx Audio (dB)
-9
________
g. Recorder Output
*TG480-20 S/N _________
QF-154 Rev.0 01/18/08
Page 4 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(20)
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:______
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: ________________
BECKER AVIONICS, INC.
*TG480-20 S/N _________
10376 USA Today Way
Miramar, FL 33025
Date:___________
Phone: 954-450-3137
Fax : 954-450-3206
QF-154 Rev.0 01/18/08
Page 5 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(50)
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
Mod.%
Dist.%
VSWR 2:1
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
Mod.%
Dist.%
VSWR 2:1
Mod.%
Dist.%
Requirements:
85 +/-5 %
< 5%
118.000 MHz
______
______
______
______
127.500 MHz
_____
______
______
______
136.975 MHz
______
______
______
______
Over modulation:
________ (none)
Min.
85 +/-10%
< 10%
________ (none)
Requirements
Max.
Measurements
Modulation AF Response:
*(127.5 MHz, 775mV, 1 kHz)
fmod.=
100
350
500
1000
Hz
Hz
Hz
Hz
*TG480-50 S/N ____________
20
______ dB
______ dB
______ dB
___0__ dB
QF-155 Rev. 0 01/18/08
Page 1 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(50)
2500
4000
Hz
Hz
______ dB
______ dB
Transmitter Compressor:
*(10mV - 30 mV, 1kHz) dif. fmod.=
_______ %
*(775mV – 1V, 1kHz)
_______ %
20
dif. fmod.=
Automatic Shutdown:
2 minutes
Tx Alarm:
_______ min
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
3dB
______dB
AGC Characteristic:
(127.5 MHz, 1000 Hz/30%, AF Level=775mV)
(5uV – 100 mV EMF)
Bandwidth:
(127.500 MHz / 1uV EMF / 400Hz / 80% / 0 dB AF output)
(Increase RF output by 6dB)
Higher frequencies
______kHz
Lower Frequencies
______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)
*TG480-50 S/N ____________
QF-155 Rev. 0 01/18/08
Page 2 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(50)
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
______V
>7
Distortion @ 7V:
10
______%
Audio Reponse:
(127.5 MHz / 100uV / 1000Hz / 30%)
350 Hz
-6
1000 Hz
______dB
2500 Hz
-6
4000 Hz
18
dB
______dB
______dB
3. CONTROL PANEL TEST
Display: (all digits flashing)
OK
________
MDE Key:
OK
________
1MHz
OK
________
1KHz
OK
________
OK
________
- 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
________
Freq. Selection:
Exchange Key:
Service Mode:
*TG480-50 S/N ____________
QF-155 Rev. 0 01/18/08
Page 3 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(50)
- 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
Over modulation:
f.
Rx Audio (dB)
95
none
________
________
-9
________
Tx Audio (dB)
-9
________
Rx Audio (dB)
-9
________
g. Recorder Output
*TG480-50 S/N ____________
QF-155 Rev. 0 01/18/08
Page 4 of 5
BECKER AVIONICS, INC.
QUALITY SYSTEM FORM
TEST REPORT: TG480-(50)
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:______
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: ________________
BECKER AVIONICS, INC.
*TG480-50 S/N ____________
10376 USA Today Way
Miramar, FL 33025
Date:___________
Phone: 954-450-3137
Fax : 954-450-3206
QF-155 Rev. 0 01/18/08
Page 5 of 5

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