Becker GT6201 series Owner's manual

Becker Avionics GmbH •Baden-Airpark B108 •77836 Rheinmünster •Germany
+49 (0) 7229 / 305-0 •Fax [phone] / 305-217
http://www.becker-avionics.com •E-mail: [e-mail]
VHF-Transceiver
VHF-Ground-Transceiver
GT6201
Installation and Operation
Manual DV17001.03
Issue 05 May 2016
Article-No. 0640.093-071

Installation and Operation
2 GT6201 DV17001.03 Issue 05 May 2016
Preface
Dear Customer,
Thank you for purchasing a Becker Avionics product. We are pleased that you have chosen our
product and we are confident that it will meet your expectations.
For development and manufacturing of our product, the guidelines for highest quality and reliability
have been borne in mind, supplemented by selection of high quality material, responsible production
and testing in accordance to the ISO 9001 and DIN EN 9100 standards.
Our competent customer support department will respond on any technical question you may have.
Please do not hesitate to contact us at any time.
VHF-Transceiver
GT6201 (Single Block Transceiver)

Installation and Operation
DV17001.03 Issue 05 May 2016 GT6201 3
List of Effective Pages and Changes
Only technical relevant modifications are described in this table.
Document: DV17001.03 / issue 05 Article Number 0640.093-071
Cover Page 05/2016
Introduction 05/2016
Chapter 1 – 4 05/2016
Issue Page No.: Section /
Chapter Description
05 1...72 all
Changed: Editorial adjustments
Added: Warning notes and safety instructions
-- 1.7.6 Changed: Dimensions-mounting depth
-- 1.8 Added: Technical data-Approvals
-- 1.9 Changed: Order Code- editorial adjustments
-- 2.3
Added: Description "Device Assignment", delivery,
identification, ...
-- 2.4
Added: Description "Mounting Requirements" in
general.
-- 2.9.2
Added: Description adjustments for better
understanding ("Installation Setup Pages").
--
--
--
--
--
© 2016 by Becker Avionics GmbH / all rights reserved

Installation and Operation
4 GT6201 DV17001.03 Issue 05 May 2016
Table of Contents
1. General Description....................................................................................................................... 9
1.1. Introduction.................................................................................................................................... 9
1.2. Purpose of Equipment ................................................................................................................. 10
1.3. General Notes ............................................................................................................................. 10
1.4. Variants Overview ....................................................................................................................... 11
1.4.1. Software Status ................................................................................................................. 11
1.5. Scope of Functionality ................................................................................................................. 11
1.6. Safety-Conscious Utilization........................................................................................................ 14
1.7. Technical Data............................................................................................................................. 14
1.7.1. Power Supply Data ........................................................................................................... 14
1.7.2. General Data ..................................................................................................................... 14
1.7.3. Receiver Data.................................................................................................................... 15
1.7.4. Transmitter Data ............................................................................................................... 16
1.7.5. Emergency Operation ....................................................................................................... 17
1.7.6. Dimensions & Weight........................................................................................................ 17
1.8. Approvals..................................................................................................................................... 17
1.9. Order Code.................................................................................................................................. 18
1.9.1. GT6201 ............................................................................................................................. 18
1.9.2. Accessories ....................................................................................................................... 18
2. Installation .................................................................................................................................... 19
2.1. Limitations ................................................................................................................................... 20
2.2. Packaging, Transport, Storage.................................................................................................... 20
2.2.1. Packaging Material and Transport .................................................................................... 20
2.3. Device Assignment...................................................................................................................... 20
2.3.1. Scope of Delivery .............................................................................................................. 20
2.3.2. Additional Required Equipment......................................................................................... 21
2.3.3. Type Plate ......................................................................................................................... 21
2.3.4. Software/Firmware Status – Functionality ........................................................................ 21
2.4. Mounting Requirements .............................................................................................................. 22
2.4.1. Installation in a Vehicle ..................................................................................................... 22
2.4.2. Installation Back Panel Mounting ...................................................................................... 22
2.5. Dimensions.................................................................................................................................. 23
2.5.1. GT6201 ............................................................................................................................. 23
2.6. Connector Pin Assignments ........................................................................................................ 24
2.6.1. Antenna Connector (Position 1) ........................................................................................ 24
2.6.2. Grounding Bolt (Position 2) ............................................................................................... 24
2.6.3. P1 Connector .................................................................................................................... 24
2.6.4. J1 Connector ..................................................................................................................... 25
2.6.5. Inputs / Outputs ................................................................................................................. 26
2.7. Wiring .......................................................................................................................................... 29
2.7.1. Car Cable Harness 1K044 ................................................................................................ 29
2.8. Installation and Configuration...................................................................................................... 30
2.8.1. Antenna Installation........................................................................................................... 30
2.9. Installation Setup ......................................................................................................................... 31
2.9.1. Start Installation Setup ...................................................................................................... 31
2.9.2. Installation Setup Pages ................................................................................................... 32
2.10. Factory Default Settings .............................................................................................................. 44
2.11. Wiring Diagrams and Settings..................................................................................................... 46
2.11.1. Single Seat Glider ............................................................................................................. 46
2.12. Post Installation Check ................................................................................................................ 46
2.12.1. Mechanical Installation and Wiring Check ........................................................................ 47
2.12.2. Power Supply .................................................................................................................... 47
2.12.3. Receiver / Transmitter Operation ...................................................................................... 47
2.12.4. Antenna Check.................................................................................................................. 47
2.13. Trouble Shooting ......................................................................................................................... 48
3. Operating Instructions ................................................................................................................ 49
3.1. Device Description....................................................................................................................... 49
3.1.1. Device Assignment ........................................................................................................... 49

Installation and Operation
DV17001.03 Issue 05 May 2016 GT6201 5
3.1.2. Packing, Transport, Storage ............................................................................................. 49
3.1.3. Scope of Delivery.............................................................................................................. 49
3.1.4. Type Plate......................................................................................................................... 49
3.1.5. Controls and Indications ................................................................................................... 51
3.2. Start-Up ....................................................................................................................................... 52
3.3. Receive and Transmit Mode ....................................................................................................... 52
3.3.1. Receive Mode ................................................................................................................... 52
3.3.2. Transmit Mode .................................................................................................................. 52
3.4. Frequency Selection Modes........................................................................................................ 53
3.4.1. Standard Mode ................................................................................................................. 53
3.4.2. Direct Tune Mode ............................................................................................................. 54
3.4.3. Channel Mode................................................................................................................... 56
3.4.4. Frequency Storage Functions........................................................................................... 57
3.4.5. Automatic Storage Function ............................................................................................. 58
3.4.6. Scan Mode........................................................................................................................ 58
3.5. SQUELCH ................................................................................................................................... 59
3.6. RX Field Strength Indication ....................................................................................................... 59
3.7. Channel Spacing Mode............................................................................................................... 59
3.8. Auxiliary Audio Input ................................................................................................................... 60
3.9. Menus.......................................................................................................................................... 60
3.9.1. User Menu ........................................................................................................................ 60
3.10. Warning and Failure Indications ................................................................................................. 62
4. Certificates ................................................................................................................................... 63
4.1. Certificate-Info ............................................................................................................................. 63
4.2. BAF Approval - GT6201.............................................................................................................. 64
4.3. EC Declaration of Conformity – GT6201-05 ............................................................................... 66
4.4. EC Declaration of Conformity – GT6201-10 ............................................................................... 68
5. Index ............................................................................................................................................. 72
Figure 1: Type plate (example) .............................................................................................................................. 21
Figure 2: Dimensions: GT6201 Single block transceiver ....................................................................................... 23
Figure 3: GT6201 front view .................................................................................................................................. 23
Figure 4: Drilling template (back-panel mounting).................................................................................................. 23
Figure 5: GT6201 – connector layout..................................................................................................................... 24
Figure 6: Car Cable Harness 1K044...................................................................................................................... 29
Figure 7: "PASSWORD DIALOG".......................................................................................................................... 31
Figure 8: "DECIVE INFO" ...................................................................................................................................... 31
Figure 9: GT6201: Controls and Indications .......................................................................................................... 51
List of Abbreviations
List of Abbreviations
AC
Advisory Circular
AF
Audio Frequency
ATT
Attenuation
AUX
Auxiliary
AWG
American Wire Gauge
BNC
Bayonet Neill Concelman
CBIT
Continuous Built-In Test
CFG
Configuration
CH
Channel
COM
Communication
DC
Direct Current

Installation and Operation
6 GT6201 DV17001.03 Issue 05 May 2016
List of Abbreviations
EASA
European Aviation Safety Agency
EMI
Electro Magnetic Interference
ETSI
European Telecommunications Standards Institute
ETSO
European Transmission System Operators
GND
Ground (Vehicle Ground)
HMI
Human Machinery Interface
HIRF
High Intensity Radiated Fields
HW
Hardware
IC
Intercom (not in use for ground applications)
I&O
Installation & Operation
LCD
Liquid Crystal Display
M&R
Maintenance & Repair
MTBF
Mean Time Between Failure
MTTR
Mean Time To Repair
N/A
Not Applicable
PBIT
Power-On Built In Test
PTT
Push To Talk
PWR
Power
RSSI
Received Signal Strength Indication
RX
Receive
SQL
Squelch
RSSI
Received Signal Strength Indicator
SN
Serial Number
SPKR
Speaker (Loudspeaker)
SRC
Source
SW
Software
TSO
Technical Standard Order
TX
Transmit
VOX
Voice Operated IC Threshold (not in use for ground applications)
VHF
Very High Frequency
VDC
Voltage Direct Current
VSWR
Voltage Standing Wave Ratio
VU
Volume Unit

Installation and Operation
DV17001.03 Issue 05 May 2016 GT6201 7
Units
Units
A
Ampere
mA
Milliampere
°C
Degree Celsius
cm
Centimetre
dBm
Power Ratio In Decibel
dB
Decibel
g
Gram
Hz
Hertz
kg
Kilogram
kHz
Kilohertz
MHz
Megahertz
Mbps
Mega Bits Per Second
mm
Millimetre
Nm
Newton Metre
NM
Nautical Mile (1NM = 1852,0 m)
Ohm (Ω)
Resistance
ppm
Parts per Million
s
Second
V
Volt
mV
Millivolt
W
Watt
mW
Milliwatt
"
Inch
General Safety Definitions
Indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
Is used to address practices not related to physical injury.
Safety instructions (or equivalent) signs indicate specific safety-related
instructions or procedures.

Installation and Operation
8 GT6201 DV17001.03 Issue 05 May 2016
Disposal
The packaging material is inflammable, if it is disposed of improperly by
burning, lethal fumes may develop.
This product contains materials that fall under the special disposal regulation, which corresponds to
the EC directive for dangerous disposal material. We recommend disposing of the respective materials
in accordance with the respectively valid environmental laws. The following table states the materials
suitable for recycling and the materials which have to be disposed of separately.
Material
Suitable for recycling
Disposal
Metal
yes
no
Plastics
yes
no
Circuit boards
no
yes
Dispose of the circuit boards:
•Disposal via a technical waste dump which is allowed to take on e.g. electrolytic
aluminium capacitors. Do under no circumstances dump the circuit boards with normal
waste dump.
Warranty Conditions
User Conversions and Changes are Not Permitted
Any change made by the user excludes any liability on our part (excluding updates for the navigation
data base).
•The device must not be opened.
•Do not make any modifications to the device, except for those described in the manual.
•Make connections to the inputs, outputs and interfaces only in the manner described in
the manual.
•Fix the devices according to the mounting instructions.
We cannot provide any guarantee for other mounting methods.
Conditions of Utilization
General introductory notes
With this device you bought a product which was manufactured and tested before delivery with the
utmost care.
Please take your time to read the following notes which you ought to follow closely during installation
and operation.
Unless, all claims under the warranty will become void and a reduced service life or even damages
must be expected.
The user is responsible for protective covers and/or additional safety measures
in order to prevent damages to persons and electric accidents.
Additional Conditions of Utilization
Please refer to "Safety-Conscious Utilization", page 14.
Non Warranty Clause
We checked the contents of this publication for compliance with the associated hard and software. We
can, however, not exclude discrepancies and do therefore not accept any liability for the exact
compliance. The information in this publication is regularly checked, necessary corrections will be part
of the subsequent publications.

General Description
Introduction
DV17001.03 Issue 05 May 2016 GT6201 9
1. General Description
In this chapter you can read about:
1.1. Introduction.................................................................................................................................... 9
1.2. Purpose of Equipment................................................................................................................. 10
1.3. General Notes ............................................................................................................................. 10
1.4. Variants Overview ....................................................................................................................... 11
1.4.1. Software Status................................................................................................................. 11
1.5. Scope of Functionality................................................................................................................. 11
1.6. Safety-Conscious Utilization ....................................................................................................... 14
1.7. Technical Data ............................................................................................................................ 14
1.7.1. Power Supply Data ........................................................................................................... 14
1.7.2. General Data..................................................................................................................... 14
1.7.3. Receiver Data ................................................................................................................... 15
1.7.4. Transmitter Data ............................................................................................................... 16
1.7.5. Emergency Operation ....................................................................................................... 17
1.7.6. Dimensions & Weight........................................................................................................ 17
1.8. Approvals .................................................................................................................................... 17
1.9. Order Code.................................................................................................................................. 18
1.9.1. GT6201 ............................................................................................................................. 18
1.9.2. Accessories....................................................................................................................... 18
This manual describes the operation and installation of the VHF-Ground-Transceiver. GT6201 The
ID label on your device shows the part number for identification purposes (see "Type Plate", page 21).
Before starting operation of the unit(s) please read this manual carefully, with particular attention to the
description referring to your device(s).
1.1. Introduction
VHF-Ground-Transceivers GT6201 are a modern family of communication equipment that have
comprehensive capabilities and significantly extend the typical aeronautical transceivers.
Designed for installation in desk-cabinets, 19 inch racks or cars VHF-Ground-Transceivers GT6201
are specified for operations on airports, airfields or airline operations stations.
Despite its small size and weight the device include inter alia:
•Sensitive receiver which meets the most recent requirements of ETSI EN 300 676.
•Receiver includes SCAN (dual watch) mode. This allows simultaneous monitoring of two
different VHF frequency channels without interrupting communication on the active
frequency.
•High efficiency transmitter, which delivers more than 10 W carrier output power at 28 V
supply voltage, or 6 W at 12 V.
Lower power consumption allows longer operation from battery.
•Non-volatile memory for storing:
o99 channels can be labelled manually for storage of VHF frequencies.
o9 recently selected VHF frequencies are automatically stored.
•Easy installation via four screws (rear panel installation). The dimensions correspond to
the standard instrument diameter of 58 mm (2¼ inch).

General Description
Purpose of Equipment
10 GT6201 DV17001.03 Issue 05 May 2016
For further descriptions we are using the term GT6201, instead writing the complete model number.
The manuals “Maintenance and Repair” (M&R), “Installation and Operation (I&O) contain the following
sections:
Section
DV17001.04
M&R
DV17001.03
I&O
General
X
X
Installation
X
X
Operation
X
X
Theory of Operation
X
N/A
Maintenance and Repair
X
N/A
Illustrated Parts List
X
N/A
Modification and Changes
X
N/A
Circuit Diagrams
X
N/A
Certifications
X
X
Attachments
X
N/A
1.2. Purpose of Equipment
GT6201 is ground-based equipment. GT6201 enables voice communication between ground and
airborne stations, using the very high frequency band between 118.000...136.9916 MHz respectively
136.9750 MHz with a selectable channel spacing of 8.33 kHz or 25 kHz.
The GT6201 transceiver can operate using ground power when installed in desk-cabinets or 19 inch
racks, but is also dedicated to applications where low power consumption is required. GT6201 is
capable to operate from standard 14 and 28 VDC installations and from 12 or 24 VDC batteries.
1.3. General Notes
The word "frequency" also used in the sense of "channel name", as defined in ICAO Annex 10,
Volume II.
In this document the word "memory channel" or "channel" means a memory place identified by a
channel number, where a frequency may be stored for later use.

General Description
Variants Overview
DV17001.03 Issue 05 May 2016 GT6201 11
1.4. Variants Overview
Within the part number, the meaning of "-X-XXX " is:
GT
6201
-
XX
-
R
Identifier
Options*
R= Remote Controlled (optional)
Model Number
RF Power Class
05= ≥6 W RF Power Output
10
= ≥10 W RF Power Output
* only available as component with TG660
1.4.1. Software Status
Description see "Software/Firmware Status – Functionality", page 21.
1.5. Scope of Functionality
Frequency Indication
A liquid crystal display (LCD) provides frequency indication. The required operating frequency is
selectable by means of a "ROTARY ENCODER". The relation between the real operating frequency
and the displayed frequency complies with the standards (ICAO Annex 10, Volume II). For an
overview, refer to the table below.
Operating Frequency
MHz
Channel Spacing
kHz
Displayed Frequency
8.33 + 25 kHz
mixed Mode 25 kHz Mode
118.0000 25 118.000 118.00
118.0000 8.33 118.005 N/A
118.0083 8.33 118.010 N/A
118.0166 8.33 118.015 N/A
118.0250 25 118.025 118.02
etc. etc. etc. etc.
136.9750 25 136.975 136.97
136.9750 8.33 136.980 N/A
136.9833 8.33 136.985 N/A
136.9916 8.33 136.990 N/A

General Description
Scope of Functionality
12 GT6201 DV17001.03 Issue 05 May 2016
Audio Outputs
GT6201 includes four fully configurable outputs:
•Headphone 1 output, rated output power is 300 mW into 75 Ω (with floating transformer
output).
•Headphone 2 output, rated output power is 200 mW into 75 Ω.
•Speaker output, rated output power is 4 W into 4 Ω.
•LINE-OUT output intended for ground station use only
Note: Headphone 2 and speaker output cannot be active at the same time
Mike Inputs
GT6201 has an input for dynamic microphone (DYN_MIKE) and an input for standard microphone
(STD_MIKE).
GT6201 provides four microphone inputs:
•Standard microphone input 1 (STD_MIKE1)
•Standard microphone input 2 (STD_MIKE2)
•Standard microphone input 3 (STD_MIKE3)
•Dynamic microphone input (DYN_MIKE)
Each input is able to operate with one single microphone or with two microphones of the same type
connected in parallel.
AF Auxiliary Input
The AF auxiliary provides the interface to connect an external audio source (e.g. other radio services,
music-player) to the transceiver. Interconnection of multiple external audio sources on this particular
port requires additional external decupling/isolation resistors. The external audio is audible only when
the transceiver is in receiving mode.
The individual audio volume is set directly at the particular external equipment.
Side Tone
The side tone is available on the headphone output during transmission. The side tone volume
automatically adapts to the intercom volume setting.
Squelch Operation
When enabled the squelch (muting) circuit suppresses weak signals. There are two kinds of squelch
methods implemented, carrier- and noise-squelch. Carrier-squelch depends on the received signal
strength and is adjustable in installation setup; the noise-squelch depends on the detected noise level
and is adjustable in the user setup.
Memory Channels
The memory function allows storage of up to 99+9 frequencies. This memory may contain up to
99 frequencies stored manually. A user defined text label is assignable for each stored frequency.
Additionally the last recently used 9 (active) frequencies are stored automatically as "LAST" channels.
Scan Mode
Scan mode provides a dual watch function. The device is capable of monitoring frequencies on two
different channels, active & preset simultaneously. The signal of the active frequency will always be
audible, since it will have priority at all times.
Illumination
The illumination of LCD and push buttons can be controlled either directly from the front panel via the
users menu or externally via the dimming input lines. If external dimming selected, the illumination
curve (brightness to voltage relation) is adjustable in installation setup.

General Description
Scope of Functionality
DV17001.03 Issue 05 May 2016 GT6201 13
LOW BATT Indication
The transceiver monitors power supply voltage. If the supply voltage drops below the adjustable
threshold, the display indicates the message "LOW BATT". If the power supply voltage drops further,
emergency operation mode will be activated.
Emergency Operation
If the power supply voltage drops below 10.25 V, the transceiver continues operation with degraded
performance. If power supply further drops below 9.0 Volt, the unit automatically switches off.
Built-in Tests PBIT and CBIT
After power-up, the unit performs a self-test (power-up built-in test / PBIT). During PBIT, the
transceiver displays "WAIT" and additionally the corresponding software versions of both, the control
head and chassis module become visible.
If faults are detected during PBIT, the error message "FAILURE, press any key" is displayed. If no
faults are detected the transceiver automatically activates the last active mode set at last power-off.
During normal operation, a continuous built-in test (CBIT) permanently verifies the correct operation of
the unit. If detecting a problem during CBIT an error message become displayed.
Installation Setup
Configuration of the installation parameters such as mike sensitivity, mike type selection, speaker
enable/disable and several other parameters, via the installation setup is provided.
Service Mode
The service mode is a special configuration mode accessible via RS422 interface with a proprietary
serial data communication protocol. This mode is for use by authorized maintenance organizations
only.

General Description
Safety-Conscious Utilization
14 GT6201 DV17001.03 Issue 05 May 2016
1.6. Safety-Conscious Utilization
For safe operation of the product the following notes have to observed:
•The installation may be carried out only by an authorized personnel. The
country regulations always have to be observed.
•Use the product only within the specified conditions , see "Technical Data",
page 14.
1.7. Technical Data
1.7.1. Power Supply Data
GT6201
Specifications
Nominal supply voltage range
11.0…30.3 VDC
Extended supply voltage range
10.25…32.2 VDC
Emergency operation
9.0...10.25 VDC
Dimming control
0…14 VDC or 0…28 VDC
Typical Power Consumption
GT6201-05
6 W
GT6201-10*
10 W
Power off state @ 12 VDC
≤0.10 mA
--
Power off state @ 24 VDC
≤0.10 mA
≤0.10 mA
Reception standby mode @ 12 VDC,
panel backlight off
≤140 mA
≤140 mA
Reception standby mode @ 24 VDC,
panel backlight off
≤80 mA
≤80 mA
Transmission mode @ 12 VDC,
VSWR=1:1
2.0 A @ 85%
1.7 A @ 0%
--
Transmission mode @ 24 VDC,
VSWR=1:1
--
1.5 A @ 85%
1.25 A @ 0%
* 10 W @ 24 VDC and above, degraded TX power < 24 V
1.7.2.General Data
GT6201
Specifications
Frequency range
118.000...136.990 MHz
Channel spacing
8.33 / 25 kHz
Number of channels
25 kHz channel spacing
760 (118.000…136.975)
8.33 kHz channel spacing
2280 (118.000…136.990)
Storage temperature range
-55...+85 °C
Operating temperature range
-20...+55 °C

General Description
Technical Data
DV17001.03 Issue 05 May 2016 GT6201 15
1.7.3. Receiver Data
GT6201
Sensitivity
(measured with psophometric filter)
≤-101 dBm for a SINAD of 12 dB (nominal)
≤-95 dBm for a SINAD of 12 dB (under extended and
extreme environmental conditions)
Effective bandwidth
(8.33 kHz channel spacing)
±2.8 kHz
Effective bandwidth
(25 kHz channel spacing)
±8.5 kHz
Squelch
level adjustable
AGC characteristic
≤6 dB in range -101...-1 dBm
Distortion
at 30%, 50% rated output power
≤5%
at 90%, 50% rated output power
≤10%
Audio frequency response
8.33 kHz channel spacing
+2 dB / -4 dB 350...2500 Hz relative to 1000 Hz
25 kHz channel spacing
+2 dB / -4 dB 300...3400 Hz relative to 1000 Hz
Audio Noise
≥40 dB at 90%
Rated output power for speaker
≥4 W into 4 Ω
Rated output power for headphone 1
≥300 mW into 75 Ω
≥100 mW into 600 Ω
Rated output power for headphone 2
≥200 mW into 75 Ω
≥100 mW into 600 Ω
Audio auxiliary input
50 mV...8 V (adjustable) across 600 Ω
Offset-carrier operation
N/A

General Description
Technical Data
16 GT6201 DV17001.03 Issue 05 May 2016
1.7.4. Transmitter Data
GT6201
Output power into 50 Ω
(with and without modulation)
GT6201-05: ≥6 W
GT6201-10: ≥10 W
Frequency tolerance
≤±1 ppm
Duty cycle
120 s (TX): 480 s (RX)
Type of modulation
6K80A3EJN
5K00A3EJN
Modulation capability
≥85%
Distortion
≤10%
Audio frequency response
8.33 kHz channel spacing
-4 dB / +2 dB in band 350...2500 Hz relative to 1000 Hz
≤-25 dB above 3200 Hz
25 kHz channel spacing
-4 dB / +2 dB in band 300...3400 Hz relative to 1000 Hz
≤-25 dB above 5000 Hz
Dynamic microphone
1…20 mV compressor starting point, adjustable
(with compressor)
Input balanced, 200 Ω
Input range up to 20 dB above compressor starting
point.
Standard microphone(s)
10…1000 mV compressor starting point, adjustable
(with compressor)
Input unbalanced, 150 Ω
Input range up to 20 dB above compressor starting
point.
FM deviation with modulation
≤3 kHz (≤ 800 Hz typ.)
Sidetone
adjustable
Automatic shutdown of transmit mode
120 s
(Factory configurable 30…120 s)

General Description
Approvals
DV17001.03 Issue 05 May 2016 GT6201 17
1.7.5. Emergency Operation
Emergency Operation 9.0…10.25 VDC (degraded performance)
For power-supply voltages below 10.25 V, the speaker output of the transceiver
will automatically switch "OFF" without further indication.
If the device enters emergency operation, the speaker is switched "OFF" due to degraded
performance. Depending on settings in installation setup "LOW BATT" may be indicated if supply
voltage drops below a predefined threshold to indicate to the user, that he should connect his headset
as the speaker may be switched "OFF" soon. In this case, a headset is required to continue operation
of the transceiver.
GT6201 (Emergency Operation)
Specifications
Panel & Display Backlight
switched off (for saving BATT energy)
TX Output Power
≥2 W into 50 Ω (with modulation)
TX Modulation Depth
≥50%
RX Sensitivity
≤-93 dBm for a (S+N)/N ratio of 6 dB
1.7.6. Dimensions & Weight
GT6201
Specifications
Front panel (W x H)
61 x 61 mm (2.4 x 2.4 inch)
Depth of unit
205.7 mm (8.98 inch)
Mounting depth
184.8 mm (7.28 inch)
Mounting
Back panel standard
Ø58 mm (2¼ inch)
Material
AlMg/Plastic
Surface treatment
Control-head coated with black matt paint
Weight
645 g (1.42 lbs)
1.8. Approvals
Unauthorized changes or modifications to the GT6201 may void the compliance
to the required regulatory agencies and authorization for continued equipment
usage.
GT6201 meets the requirements of ETSI EN 300 676 Regulations
Part Number Article Number Approval
GT6201-05 0637.351-923
BAF - German Federal Supervisory Office for
Air Navigation Services
D-0030/2014
GT6201-10 0637.361-923
BAF - German Federal Supervisory Office for
Air Navigation Services
D-0030/2014

General Description
Order Code
18 GT6201 DV17001.03 Issue 05 May 2016
1.9. Order Code
1.9.1.GT6201
Qty
VHF-Transceiver
1
GT6201-05, Single Block Unit, ≥6 Watt RF Power Output
Article no. 0637.351-923
1
GT6201-10, Single Block Unit, ≥10 Watt RF Power Output
Article no. 0637.361-923
1.9.2.Accessories
Qty
Mounting
1
Vehicle Kit VK4201
•1PM012, Dynamic Microphone
•1PL011, Speaker with housing and cables
•1E024, Car mounting
•1K044, Cable harness
•1A002, Antenna
•1KA003, Antenna cable, length 2.5 m
Article-No. 0892.424-923
Qty
Available Documentation
1
GT6201 Installation and Operation Manual, English
Article no. 0640.093-071
1
GT6201 Maintenance and Repair Manual, English
Article no. 0640.107-071
1
Quick Start Guide English/German
Article no. 0646.921-071

Installation
Limitations
DV17001.03 Issue 05 May 2016 GT6201 19
2. Installation
This manual must be available close to the device during the performance of all tasks.
The installation of the transceiver depends on the location and its equipment. Therefore, this section
only provides general information.
Careful planning should be applied to achieve the desired performance and reliability from the product.
Any deviations from the installation instructions prescribed in this document are under own
responsibility.
In this chapter you can read about:
2.1. Limitations ................................................................................................................................... 20
2.2. Packaging, Transport, Storage ................................................................................................... 20
2.2.1. Packaging Material and Transport.................................................................................... 20
2.3. Device Assignment ..................................................................................................................... 20
2.3.1. Scope of Delivery.............................................................................................................. 20
2.3.2. Additional Required Equipment ........................................................................................ 21
2.3.3. Type Plate......................................................................................................................... 21
2.3.4. Software/Firmware Status – Functionality ........................................................................ 21
2.4. Mounting Requirements .............................................................................................................. 22
2.4.1. Installation in a Vehicle ..................................................................................................... 22
2.4.2. Installation Back Panel Mounting...................................................................................... 22
2.5. Dimensions.................................................................................................................................. 23
2.5.1. GT6201 ............................................................................................................................. 23
2.6. Connector Pin Assignments........................................................................................................ 24
2.6.1. Antenna Connector (Position 1)........................................................................................ 24
2.6.2. Grounding Bolt (Position 2)............................................................................................... 24
2.6.3. P1 Connector .................................................................................................................... 24
2.6.4. J1 Connector..................................................................................................................... 25
2.6.5. Inputs / Outputs................................................................................................................. 26
2.7. Wiring .......................................................................................................................................... 29
2.7.1. Car Cable Harness 1K044 ................................................................................................ 29
2.8. Installation and Configuration ..................................................................................................... 30
2.8.1. Antenna Installation .......................................................................................................... 30
2.9. Installation Setup......................................................................................................................... 31
2.9.1. Start Installation Setup...................................................................................................... 31
2.9.1.1. Navigate between Pages....................................................................................... 31
2.9.1.2. Store Setup Data ................................................................................................... 31
2.9.1.3. Leave Installation Setup ........................................................................................ 31
2.9.1.4. Adjust Volume Settings (VU Meter)....................................................................... 31
2.9.2. Installation Setup Pages ................................................................................................... 32
2.10. Factory Default Settings.............................................................................................................. 44
2.11. Wiring Diagrams and Settings..................................................................................................... 46
2.11.1. Single Seat Glider ............................................................................................................. 46
2.11.1.1. Installation Setup ................................................................................................... 46
2.12. Post Installation Check................................................................................................................ 46
2.12.1. Mechanical Installation and Wiring Check ........................................................................ 47
2.12.2. Power Supply.................................................................................................................... 47
2.12.3. Receiver / Transmitter Operation...................................................................................... 47
2.12.4. Antenna Check ................................................................................................................. 47
2.13. Trouble Shooting......................................................................................................................... 48

Installation
Limitations
20 GT6201 DV17001.03 Issue 05 May 2016
2.1. Limitations
•GT6201 is designed been installed as ground based transceiver for management air and
ground traffic operations..
•The equipment is not qualified for installation in areas where fluid contamination is quite
likely.
Unauthorized changes or modifications to the GT6201 may void the compliance
to the required regulatory agencies and authorization for continued equipment
usage.
2.2. Packaging, Transport, Storage
Visually inspect the package contents for signs of transport damage.
2.2.1. Packaging Material and Transport
The packaging material is inflammable, if it is disposed of improperly by burning,
lethal fumes may develop.
The packaging material can be kept and reused in the case of a return shipment. Improper or faulty
packaging may lead to transport damages.
Make sure to transport the device always in a safe manner and with the aid of suitable lifting
equipment if necessary. Do never use the electric connections for lifting. Before the transport, a clean,
level surface should be prepared to place the device on. The electric connections may not be
damaged when placing the device.
First Device Checkup
•Check the device for signs of transport damages.
•Please verify if the indications on the type plate correspond to your purchase order.
•Check if the equipment is complete ("Scope of Delivery", page 20).
Storage
If you do not wish to mount and install the device immediately, make sure to store it in a dry and clean
environment. Make sure that the device is not stored near strong heat sources and that no metal
chippings can get into the device.
2.3. Device Assignment
This manual is valid for the following devices:
•GT6201-05
•GT6201-10
from Software Version
SCI1050S305 Version 3.08
SCI1051S305 Version 1.56
2.3.1. Scope of Delivery
•Manuals
oInstallation and Operation
•Device in accordance with your order
•Documents of Certifications if available