Becker 0622.834-923, Installation And Operation Manual

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General Description
Purpose of Equipment
10 GK61X-XX DV16800.03 Issue 03 08/2015
1.2. Purpose of Equipment
The carrying case contains the batteries, speaker, antenna socket, the 5 way DIN socket for the
microphone or microphone speaker and the voltage converter. A microphone, a headset or a helmet
(ultra light) can be connected to the 5 way DIN socket.
The built-in battery is a maintenance-free rechargeable dry lead acid battery 12 V/2 Ah (the number of
the built-in batteries depends on the model). The transmitter power is approximately 5...7 W at 12 V
and 10 W at 24 V supply voltage.
The battery can be charged via the ext. DC socket. The charging voltage can vary between 10...32 V.
The charging time for a complete discharged battery is approximately 8 hours. The nominal operating
time for the portable VHF station is approximately 6 hours at a keying ratio of 1:10 (normal radio
traffic) and a transmit output power of 5 W. Reception is still guaranteed for ca. two further hours.
The transceiver contains a monitoring stage for the battery voltage which is activated when the unit is
switched on. "LOW BATT" is indicated (appearance about every 5 seconds) if the supply voltage of
the transceiver is below the threshold defined in the installation setup. The transceiver is still operable.
Depending on the supply voltage the transceiver may have a reduced performance.
The portable VHF station is ready for operation after the antenna is connected and the microphone
plugged in.
1.3. Variants Overview
Within the part number, the meaning of "X-XX " is:
GK 61 X - XX
Identifier Option
Model Number
1= with "Speaker-Mike"
10= Special China Variant
E= Ground Station (ETSI conform)
1E= Ground Station (ETSI conform) with "Speaker Mike"
21= Special Military Variant
Power Class
5 – 6 Watt RF Power
6 – 10 Watt RF Power