Power On/Off; Adjusting The Volume; Display Lighting - GME GA9800 Instruction Manual

Battery Usage
The time taken to discharge the battery pack
will depend on how you use the TX680 .
The1000 mAh battery pack supplied is
powerful enough for a full days use under
average conditions. (Optional BP006 1850
mAh battery pack also available.)
Conserving Battery power
The TX680 has built-in power saving features
to help you get the maximum amount of time
between charges from your Li-Ion battery
pack . If you need to operate your TX680
in a situation where you require maximum
battery life (e.g. a remote site where there is
no convenient recharging facility nearby) the
following hints can greatly reduce the amount
of power drawn from the battery pack.
Standby Mode
The TX680 will automatically enter the
'Standby' mode when it is inactive (i.e. not
transmitting or receiving signals . While in
Standby mode it will still check for incoming
signals but it will draw considerably less
power from the battery pack. As soon as a
signal is heard or the keys are pressed the
TX680 will 'wake up' again. This Standby
mode is automatic and by itself can extend
the battery life by many hours.
Using CTCSS
If you are expecting to receive signals on a
busy channel, you can program that channel
for CTCSS operation and get the other person
to call you using the same CTCSS tone . Your
radio will then remain in Standby and ignore
all other signals until your selected CTCSS
tone is received .
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Scanning
The TX680 draws more power from the
battery pack when scanning than when
monitoring a single channel. This is because
it must 'wake up' more often to monitor
each channel for activity . You can squeeze
that extra bit of life from the battery pack
by avoiding any unnecessary scanning. In
addition, scanning increases the chance of
finding a signal thereby keeping the receiver
'awake' and the squelch open more often .
Low Transmit power Settings
The transmitter has both high and low power
settings . If you are only operating over short
distances, are in a reasonably high location
or are close to a local repeater, try using the
Low transmitter power setting . This reduces
the transmitter power from 3 Watts to 1 Watt
effectively doubling the talk time available.
geNeRAL OpeRATION

pOWeR ON/Off

Rotate the Volume control clockwise past the
'click' to turn the radio on . Rotate the control
counter-clockwise past the click to turn the
radio off again .

AdjUSTINg THe VOLUMe

With the unit powered on, rotate the Volume
control clockwise to increase the volume and
counter-clockwise to decrease the volume .

dISpLAy LIgHTINg

The LCD backlighting activates automatically
whenever a key is pressed and turns off
automatically after about 5 seconds.
INSTRUCTION MANUAL TX680