Becker Designed AR 4201 User Manual

OPERATING INSTRUCTIONS

Becker Flugfunkwerk GmbH

Baden Airpark, B 108

D-77836 Rheinmünster (Germany)

Tel. [phone] / 305-0

Fax [phone] / 305-217

E-Mail [e-mail] or

[e-mail]

BECKER AR 4201 - ( O) (GK 415)

portable VHF Transceiver

Subject to technical changes

© Copyright by Becker Flugfunkwerk

Issue 05/00 Article No. 890.375-071

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Operating Instructions

Page 40 Issue 05/2000

Table of contents

Important 3

Introduction 3

Safety information 4

Additional information 5

General information 6

Controls and indicators 7

p

Switching on the unit 8

Function of controls and indicators 9

Operating instructions 8

p

Switching on the portable VHF station 11

p Transmit/receive mode 12

p Jamming of transmit button 13

p Flashing of the LCD 14

p

Operation of the various modes 15

p Mode 1 (standard mode) 16

p

Mode 2 (display of fixed frequencies in the

various channels) 17

p

Channel selection mode 17

p

Scan function 18

p

Mode 3 (indication of supply voltage) 19

Service mode (equipment configuration) 20

p

Calling up the service mode 21

p

Setting the squelch threshold 22

p

Setting the sidetone level 23

p

Setting the audio auxiliary level 23

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p

Setting the IC level 24

p

Calibrating the temperature sensor 24

p

Setting addressable storage locations 1 to 99 24

p

Setting the temperature display in °C or °F 25

p

Switching on the scan function 25

p

Setting the hold time in the scan function 25

p

Inhibiting the frequency setting (channel selection only) 26

p

Inhibiting the frequency storage 26

p

Erase stored frequencies 27

p

Setting the “channel start” scanning range 27

p

Setting the “channel end” scanning range 28

p Entry of password to interlock the equipment configuration28

p Setting the dynamic mike input sensitivity 29

p Inhibiting the transmit mode for one or more memory 29

channel (

p

Channel priority ON/OFF switch 30

(option upwarts serial no.: 46)

p

Squelch fast mode (upwarts serial no.: 46) 30

p

Basic settings in the service mode 31

p

Ending of the service mode 31

Technical data 32

Repair instructions 33

p

Equipment manuals 33

Servicing and operation of lead-acid batteries 34

Operating Instructions

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Issue 05/2000 Page 39

Operating Instructions

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Important

Carefully read these operating instructions right through before attemp-

ting to operate the portable VHF station.

Keep these operating instructions carefully. They contain important sa-

fety and operating instructions for the portable VHF station.

Introduction

Thank you for purchasing the BECKER portable VHF station. The tech-

nology used is to the state of the art.

To fully utilise the capabilities of your portable VHF station, please care-

fully read these operating instructions right through before you start ope-

rating the set.

If you have any questions regarding the operation of the portable VHF

station, please get in touch with your nearest Becker Dealer or with the

Becker Customer Service.

Becker GK 415 - ( )

Issue 05/2000 Page 3

The CAUTION, WARNING and NOTE highlights have the following

meanings:

Failure to comply, or incorrect compliance, with

these instructions or procedures can lead to in-

juries or fatal accidents.

Failure to comply, or incorrect compliance, with

these instructions or procedures can lead to

damage to equipment.

NOTE

Feature to which attention should be drawn.

Safety information

l

Never connect the portable VHF station to alternating current volta-

ge or to voltage sources exceeding 32 V.d.c.

l

Never connect the portable VHF station with reversed polarity to a

voltage source.

l

The installation or use of the portable VHF station in ambient tempe-

ratures below -15°C or above +50°C is to be avoided.

Operating Instructions

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WARNING

CAUTION

CAUTION

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Operating Instructions

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Additional information

l

A speech test is to be performed before startup and it should be no-

ted that if the speech test is carried out close to the portable VHF sta-

tion the results may bepositive even if the antenna cable isbroken or

short-circuited. At a distance of 5 to 10 km no connection will be

made.

l

Use a loud voice for speech communication and hold the micropho-

ne close to the lips. Otherwise noise can be intrusive and make un-

derstanding difficult.

l

Use only microphones or headsets which are suitable for use in air-

craft. Incoming radiation on the equipment antenna can affect the in-

tegrated amplifier of the microphone (feedback). This is noticeable

in the portable VHF station by whistling and/or heavy distortion. The

described disturbances can occur in different ways on the different

transmission channels.

l he PTT (press to transmit) button can stick and cause continuous

transmission. Therefore, when transmitting observe the arrow in the

top line on the left next to the active frequency display and check that

when the PTT is released the arrow disappears.

l

The fuse may be replaced only by the specified fuse, otherwise un-

controlled damage can occur at the VHF transceiver.

Becker GK 415 - ( )

Issue 05/2000 Page 5