Becker Avionics AR6201 Installation instrauctions

VHF-Transceiver

AR6201-(XXX)

Installation and Operation

Manual DV 14300.03
Issue 1 May 2010

Becker Flugfunkwerk GmbH · Baden Airpark · 77836 Rheinmünster · Germany

Telephone [phone] / 305-0 · Fax [phone] / 305-217

http://www.becker-avionics.com · e-mail: [e-mail]

FIRST ISSUE AND CHANGES

Issue 1 May 2010

LIST OF EFFECTIVE PAGES

Page No.: Date : Page No.: Date :

Cover page

1 -I - 1-II
1-1 - 1-10

2-I - 2-II
2-1 - 2-18

3-I - 3-II
3-1 - 3-16

05/2010

05/2010
05/2010

05/2010
05/2010

05/2010
05/2010

DV 14300.03 / Article Number 0617.857-071

© 2010 by Becker Flugfunkwerk GmbH / All rights reserved

AR6201

Table of contents

Section I General Description Page

1.1 Introduction 1-1

1.2 Purpose of equipment 1-1

1.3 General description 1-1

1.4 Variants survey 1-3

1.5 Technical data 1-4

1.5.1 Power supply data 1-4

1.6 General data 1-4

1.6.1 Dimensions Weight 1-4

1.6.2 Receiver data 1-5

1.6.3 Transmitter data 1-5

1.6.4 Software EUROCAE ED-12B/RTCA DO-178B Level D 1-6

1.7 Approval 1-6

1.8 Environmental Qualification 1-7

1.9 Accessories 1-9

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Section I GENERAL DESCRIPTION

1.1 Introduction

This manual describes the VHF transceiver AR6201-(XXX). The manuals DV 14300.03 (“Installation
and Operation”) and DV 14300.04 (“Maintenance and Repair”) contain the following sections.

Section DV 14300.03 DV 14300.04

1

2

3

4

5

6

7

8

General Information

Installation

Operation

Theory of operation

Maintenance and Repair

Illustrated Parts List

Modification and Changes

Circuit Diagrams

XX

XX

XX

N/A X

N/A X

N/A X

N/A X

N/A x

1.2 Purpose of equipment

The VHF transceiver enables voice communication in the very high frequency band between

118.000 MHz to 136.990 MHz (radio communication part of airband) with a channel spacing of 25 kHz
in 25 kHz mode and with 8.333 kHz channel spacing in 25+8.33 kHz mixed mode.

1.3 General description

The VHF transceiver is designed without any verified environmental class restrictions. It can be fitted
in the instrument panel of all aircraft types.

The VHF transceiver can be fully remote controlled via a RS422 interface and the industry established
Commercial Serial Data Bus protocol.

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AR6201

Configuration of the system is possible by means of a dedicated service interface implemented as a
RS422 interface line with a proprietary serial data communication protocol.

The VHF transceiver is a compact and lightweight single block unit. The dimensions correspond to the
standard instrument diameter of 58 mm (2 1/4 inch). Mounting is by means of four screws (rear panel
mounting). All controls and indicators are located on the front panel. The equipment connectors and
the antenna socket are located at the rear of the unit.

After switch on, the unit performs a self test (PBIT). After the PBIT the transceiver shows “WAIT” and
the corresponding software versions of the control head and chassis module. If the PBITdetects a fatal
error, the transceiver terminates operation and will be locked.

The transmitter is designed for the 118.000 MHz to 137.000 MHz frequency range. The sidetone is
available on the headphone output during transmission. The sidetone level can be set in the service
menu.

The frequency indication is by means of a liquid crystal display (LCD). The required operating frequen
cy is set with the frequency selector switch. The pushbutton selects the digits.

Memory channels

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. Last 9 frequencies are stored auto­matically.

Mike inputs

The VHF transceiver has an input for dynamic microphone (DYN_MIKE) and an input for standard mi­crophone (STD_MIKE). Each input is able to operate with single microphone or with 2 microphones of
the same type connected in parallel.

AF auxiliary input

The AF auxiliary input enables AF signal switching ofauxiliaryunits in theaircraft. The switchedAF sig­nals can be monitored in the reception mode only .

Audio outputs

The Headphone rated output power is ³ 300 mW @ 150 Ohm.

The transceiver includes a speaker output (SPK). The rated output power from the Speaker Output is
min.4W@4Ohm

-

The transceiver has an asymmetrical LINE output (LINE_OUT). When the transceiver is operating in
RX mode the line output supplies the sum of intercom audio, receiver audio and auxiliary audio. When
the transceiver is operating in TX mode, then the LINE output supplies the natural sidetone.

Intercom mode

Aircraft internal communication is possible in the intercom mode (IC). The intercom mode is activated
by a long press of the SQL/IC button.

Squelch Operation

There are two kinds of squelch methods implemented. The carrier squelch (C_Squelch) and noise
squelch (N_Squelch). The carrier squelch is based on received signal strength; the noise squelch is
based on noise level detected in demodulated received signal.

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AR6201

Scan sub mode

The scan sub-modeis activated by a long press of the EXCHANGE/SCAN key in all selection modes.

Illumination

The VHF transceiver include a dimming input that controls illumination of LCD and push buttons. The
dimming entry is either 14V AC/DC or 28V DC.
The illumination can be dimmed from off to fullillumination.The display has minimum illumination to en
sure that the indicators are always visible.

The characteristic of the dimming and illumination curve can be adapted to other unitsin the instrument
panel in the service mode. The unit setup enables selection value of display contrast in range of 0 …
100 %.

Monitoring stage for the power supply voltage

The VHF transceiver also contains a monitoring stage for the power supply voltage which is activated
when the VHF transceiver is switched on. If the supply voltage drops below 10.5 V (Low Battery

Threshold), the display indicates the message “LOW BATT”.

Emergency operation

In emergency operation the following performance reduction is possible i.e. when the supply voltage
dropped down to 9 V.

-

For TX Mode: RF Rated power is ³ 2W@50Ohm, modulation depth is ³ 50 %,

p

p For RX Mode: (S+N)/N ³ 6 dB for RF level -93 dBm, m = 30% 1 kHz sine

1.4 Variants survey

Type designation
Part-No.:

VHF Transceiver single block

Nominal supply
voltage

13.75 V

Transmitter
output

³ 6W

Panel lighting Panel colour

Green AR6201-(000)

Article Nr.: 0610.321-910

VHF Transceiver single block

-

13.75 V

³ 6W

Blue-White AR6201-(002)

Article Nr.: 0614.203-910

13.75 V /

27.5 V

13.75 V /

27.5 V

black

black

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AR6201

1.5 Technical data

1.5.1 Power supply data

Nominal supply voltage 13.75 V DC
Supply voltage range 9.0 V … 32.2V DC

Emergency operation 9.0 V DC … 10.25 V DC

Power consumption

Power off state £ 0.1 mA
Reception mode £ 140 mA
Transmission mode £ 2 A TX mode m ³ 70 %

£ 1.8A@12VDC; TX Carrier unmodulated
£ 4A@14VDC; Antenna VSWR = 3:1

DC-Fuse internal 5 A (resettable)

Dimming control 13.75 V DC or 27.5 V DC

1.6 General data

Frequency range 118.000 MHz to 136.975 MHz for 25 kHz
Frequency range 118.000 MHz to 136.990 MHz for 8.333 kHz

Channel spacing 25 kHz or 8.333 kHz

Nummber of channels 760 (25 kHz) / 2278 (8.333 kHz)

Storage temperature range -55 °C to +85 °C

Operating temperature range as per
EUROCAE/RTCA ED-14E/DO-160E -20 °C to + 55 °C

short-time + 70 °C
Operating altitude as per
EUROCAE/RTCA ED-14E/DO-160E 35,000 ft

Vibration as per
EUROCAE/RTCA ED-14E/DO-160E Cat. S+U

1.6.1 Dimensions weight

Front panel 61.2 mm x 61.2 mm
Depth of unit without 208.3 mm
cable connector
Mounting (backpanel) standard 58 mm diameter (2

1/4 inch)

Material of Case, surface treatment ALMg, blank

coated black matt paint

Weight £ 800 g

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1.6.2 Receiver data

Sensitivity -93 dBm for a (S+N)/N ratio of 6 dB

(mod. 1000 Hz/30%)

Effective bandwidth ³ ± 3 kHz at the 6 dB points

£±7.37 kHz at the 60 dB points

Squelch Can be adjusted to any trigger level or

switched off

AGC characteristic for £ 6 dB mod. 30% 1000 Hz

-93 dBm to 0 dBm

Distortionm=85% £ 15%

Audio frequency response £ 6 dB 350 Hz to 2500 Hz
relative to 1000 Hz ³ 35 dB at 4000 Hz

Rated output
for speaker operation ³ 4 W into 4 W

Rated output power
for headphone operation ³ 300 mW into 150 W

³ 100 mW into 600 W

Audio auxiliary input 1 V to8Vat600 W ± 10%
adjustable (regardless of volume setting)

1.6.3 Transmitter data

Transmitter output ³ 6 W into 50 W

Frequency tolerance £ 5 ppm

Duty cycle 1:4 (Min)

Type of modulation A3E (amplitude modulation)

Modulation capability ³ 70%

Distortion at 70% modulation £ 15%

Modulation bandwidth £ 6 dB 350 Hz to 2500 Hz

Dynamic microphone 1 … 20 mV balanced (200 W)

(dynamic compressor)

Standard microphone 10 mV ..... ³ 1 V (150 W)

(dynamic compressor)

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AR6201

FM deviation with modulation
m=70%f=25kHz/8.33 kHz £ 3 kHz

Sidetone adjustable

Automatic shutdown on transmit after 30 seconds ... 120 seconds of conti­mode nuous transmission, the transmitter shuts

down

1.6.4 Software EUROCAE ED-12B/RTCA DO-178B Level D

The frequency processing, frequency storage and frequency indication are controlled by microproces
sors. The software is classified as Category “MINOR” Level D in accordance with EUROCAE/RTCA
Document ED12B/DO-178B.

1.7 Approval

ETSO pending

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AR6201

1.8 Environmental Qualification

The following performance standards under environmental test conditions have been established in
accordance with the procedures set forth in EUROCAE/RTCA Document ED-14E/DO-160E.

Condition Section Cat. Description

Temperature and Altitude 4.0 C4

Ground Survival Low Temperature 4.5.1 -55 deg C

Short-Time Operating Low

-20 deg C

Temperature

Operating Low Temperature -20 deg C

High Ground Survival Temperature 4.5.2 +85 deg C

High Short-Time Operating Temp. 4.5.3 +70 deg C

Operating High Temp. 4.5.4 +55 deg C

In-flight Loss of Cooling 4.5.5 X No forced cooling required

Altitude 4.6.1 C4 35,000 ft

Decompression 4.6.2

Overpressure 4.6.3

Temperature Variation 5.0 B 5°C per minute

Humidity 6.0 A Standard

Shock and Crash Safety 7.0 B Fixed-wing and Helicopter, standard

Vibration 8.0 S

U

Curve M for Fixed-wing Aircraft

Curve G for Helicopters

Explosion proofness 9.0 X N/A

Water proofness 10.0 X N/A

Fluids Susceptibility 11.0 X N/A

Sand and Dust 12.0 X N/A

Fungus Resistance 13.0 X N/A

Salt Spray 14.0 X N/A

Magnetic Effect 15.0 Z Less than 0.3m

Power Input 16.0 B DC installations with battery of signi

ficant capacity

Voltage Spike 17.0 A High degree of protection against

voltage spikes

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AR6201

Condition Section Cat. Description

Audio Freq. Conducted Susceptibility 18.0 B DC installations with battery of signi

ficant capacity

Induced Signal Susceptibility 19.0 AC Primary power DC or AC, 400Hz

Radio Frequency Susceptibility 20.0 WS Interim High Intensity Radiated

Fields

Emission of Radio Frequency Energy 21.0 B Equipment where interference

should be controlled to a tolerable

level

Lightning Induced Transients Suscepti

bility

22.0 A1E3X Pin test waveform A, level 1

-

Cable bundle test waveform E,

level 3

Lightning Direct Effects 23.0 X N/A

Icing 24.0 X N/A

Electrostatic Discharge 25.0 A Equipment operated in an aerospace

environment

Fire, Flammability 26.0 X N/A

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AR6201

1.9 Accessories

Connector Kit CK4201-S (soldering version) Article-No.: 0879.304-954

consisting of

25-pol. cable connector, soldering F Article no. 0725.021-277

Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Connector Kit CK4201-C (crimp version) Article-No.: 0514.901-954

consisting of

25-pol. cable connector, crimp F Article no. 0472.921-277

Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Connector Kit CK6200-S (soldering version) Article-No.: 0617.903-954

consisting of

25-pol. cable connector, soldering F Article no. 0725.021-277

25-pol. cable connector, soldering M Article no. 0726.331.277

2 X Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

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Connector Kit CK6200-C (crimp version) Article-No.: 0617.891-954

consisting of

25-pol. cable connector, crimp F Article no. 0472.921-277

25-pol. cable connector, crimp M Article no. 0891.551-277

2 X Connector housing Article no. 0775.479-277

Antenna plug Article no. 0725.706-277

Label “COMM” Article no. 0711.111-258

Documentation

Operating instructions Article no. 0618.764-071

Manual Installation and Operation Article no. 0617.857-071

Manual Maintenance and Repair Article no. 0617.865-071

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AR6201

Ta ble of con tents

Sec tion 2 IN STAL LA TION Page

2.1 Ge ne ral 2-1

2.2 Te sting be fo re in stal la ti on 2-1

2.3 Me cha ni cal in stal la ti on 2-1

2.3.1 Me cha ni cal in stal la ti on of VHF trans cei ver. 2-1

2.4 In stal la ti on wi ring 2-2

2.4.1 Ge ne ral 2-2

2.4.2 Mi cro pho ne con nec ti on 2-2

2.4.3 Spea ker con nec ti on 2-3

2.4.4 He adpho ne con nec ti on 2-3

2.4.5 In ter com mode “IC con nec ti on” 2-3

2.4.6 Pa nel lighting 2-4

2.4.7 “Au xi lia ry” au dio in put 2-4

2.4.8 LINE out put 2-5

2.4.9 In ter nal au to ma tic fuse (re se ta ble) 2-5

2.5 Di men sions VHF trans cei ver 2-6

2.5.1 Dril ling jig for back-panel moun ting 2-7

2.6 Elec tri cal In ter fa ce Over view 2-7

2.7 P1 Con nec tor (Sy stem In

2.8 J1 Con nec tor (Se ri al In ter fa ces and Di scre te I/Os) 2-9

2.9 An ten na con nec tor 2-10

2.10 Trans cei ver groun ding 2-10

2.11 Ser vi ce mode 2-10

2.12 In ter wi ring dia gram of the VHF trans cei ver 2-14

2.13 Te sting af ter in stal la ti on 2-17

2.13.1 Ground test with en gi ne shut down 2-17

2.13.2 Ground test with en gi ne run ning 2-17

ter fa ces) 2-8

Fig. 2-1 In ter wi ring pa nel lighting 2-4
Fig. 2-2 Lo ca tion of au to ma tic fuse (re se ta ble) 2-5
Fig. 2-3 Moun ting di men sions VHF trans cei ver 2-6
Fig. 2-4 Back-pa nel moun ting 2-7
Fig. 2-5 In ter wi ring of the VHF trans cei ver 2-14
Fig. 2-6 In ter wi ring dia gram VHF trans cei ver with in ter com sys tems 2-15
Fig. 2-7 In ter wi ring dia gram VHF trans cei ver with in ter com sys tems 2-16

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