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	05/2010
1 -I - 1-II	05/2010
1-1 - 1-10	05/2010
2-I - 2-II	05/2010
2-1 - 2-18	05/2010
3-I - 3-II	05/2010
3-1 - 3-16	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

1.1Introduction

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	General Information	X	X
2	Installation	X	X
3	Operation	X	X
4	Theory of operation	N/A	X
5	Maintenance and Repair	N/A	X
6	Illustrated Parts List	N/A	X
7	Modification and Changes	N/A	X
8	Circuit Diagrams	N/A	x

1.2Purpose 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.

1.3General 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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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 PBIT detects 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 frequency 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 of auxiliary units in the aircraft. The switched AF signals can be monitored in the reception mode only .

Audio outputs

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

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

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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Scan sub mode

The scan sub-mode is 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 full illumination.The display has minimum illumination to ensure that the indicators are always visible.

The characteristic of the dimming and illumination curve can be adapted to other units in 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 2 W @ 50 Ohm, modulation depth is 50 %,

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

1.4Variants survey

Type designation	Nominal supply	Transmitter	Panel lighting	Panel colour
Part-No.:	voltage	output
VHF Transceiver single block	13.75 V	6 W	13.75 V /	black
Green AR6201-(000)			27.5 V
Article Nr.: 0610.321-910
VHF Transceiver single block-	13.75 V	6 W	13.75 V /	black
Blue-White AR6201-(002)			27.5 V
Article Nr.: 0614.203-910

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1.5Technical 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 70 %
		1.8 A @ 12 VDC; TX Carrier unmodulated
		4 A @ 14 VDC; 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

1.6.1Dimensions 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 (21/4 inch)
Material of Case, surface treatment	ALMg, blank
	coated black matt paint
Weight	800 g

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1.6.2Receiver data

Sensitivity

Effective bandwidth

Squelch

AGC characteristic for -93 dBm to 0 dBm

Distortion m = 85%

Audio frequency response relative to 1000 Hz

Rated output

for speaker operation

Rated output power

for headphone operation

Audio auxiliary input

adjustable (regardless of volume setting)

1.6.3Transmitter data

Transmitter output

Frequency tolerance

Duty cycle

Type of modulation

Modulation capability

Distortion at 70% modulation

Modulation bandwidth 6 dB

Dynamic microphone

Standard microphone

-93 dBm for a (S+N)/N ratio of 6 dB (mod. 1000 Hz/30%)

± 3 kHz at the 6 dB points

7.37 kHz at the 60 dB points

Can be adjusted to any trigger level or switched off

6 dB mod. 30% 1000 Hz

15%

6 dB 350 Hz to 2500 Hz

35 dB at 4000 Hz

4 W into 4

300 mW into 150

100 mW into 600

1 V to 8 V at 600 ± 10%

6 W into 50

5 ppm

1:4 (Min)

A3E (amplitude modulation)

70%

15%

350 Hz to 2500 Hz

1 … 20 mV balanced (200 (dynamic compressor)

10 mV ..... 1 V (150 (dynamic compressor)

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	AR6201
FM deviation with modulation
m = 70% f = 25 kHz / 8.33 kHz	3 kHz
Sidetone	adjustable
Automatic shutdown on transmit	after 30 seconds ... 120 seconds of conti-
mode	nuous transmission, the transmitter shuts
	down

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

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

1.7Approval

ETSO

pending

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1.8Environmental 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	Curve M for Fixed-wing Aircraft
		U	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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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-	22.0	A1E3X	Pin test waveform A, level 1
bility			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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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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	AR6201
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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Table of contents

Section	2	INSTALLATION			Page
2.1	General				2-1
2.2	Testing before installation				2-1
2.3	Mechanical installation				2-1
2.3.1	Mechanical installation of VHF transceiver.				2-1
2.4	Installation wiring				2-2
2.4.1	General				2-2
2.4.2	Microphone connection				2-2
2.4.3	Speaker connection				2-3
2.4.4	Headphone connection				2-3
2.4.5	Intercom mode “IC connection”				2-3
2.4.6	Panel lighting				2-4
2.4.7	“Auxiliary” audio input				2-4
2.4.8	LINE output				2-5
2.4.9	Internal automatic fuse (resetable)				2-5
2.5	Dimensions VHF transceiver				2-6
2.5.1	Drilling jig for back-panel mounting				2-7
2.6	Electrical Interface Overview				2-7
2.7	P1 Connector (System Interfaces)				2-8
2.8	J1 Connector (Serial Interfaces and Discrete I/Os)				2-9
2.9	Antenna connector				2-10
2.10	Transceiver grounding				2-10
2.11	Service mode				2-10
2.12	Interwiring diagram of the VHF transceiver				2-14
2.13	Testing after installation				2-17
2.13.1	Ground test with engine shut down				2-17
2.13.2	Ground test with engine running				2-17
Fig. 2-1	Interwiring panel lighting				2-4
Fig. 2-2	Location of automatic fuse (resetable)				2-5
Fig. 2-3	Mounting dimensions VHF transceiver				2-6
Fig. 2-4	Back-panel mounting				2-7
Fig. 2-5	Interwiring of the VHF transceiver				2-14
Fig. 2-6	Interwiring diagram		VHF transceiver	with intercom systems	2-15
Fig. 2-7	Interwiring diagram		VHF transceiver	with intercom systems	2-16

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