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

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.
Scanning
The TX670 draws more power from the batteries 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 lengthen the battery life 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 2 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.
TX670 Instruction Manual Page 7