General Operation - GME GA9800 Instruction Manual

Charging the Batteries
Your TX670s are supplied with an AC adapter and semi-quick charger
that will recharge a fully discharged set of 1500 mAh batteries to full
capacity in around 6-7 hours. The semi-quick charger is capable of
charging 2 radios at once.
1. P lug the AC adapter into a standard 240 Volt AC outlet.
2. P lug the lead from the AC adapter into the charging cradle.
3. P lace the TX670s into the cradle. The associated LED will light RED to
indicate the batteries are charging.
3. W hen the batteries have charged, the LED will change to GREEN.
Battery Low Alert
When the icon blinks on the display, the battery level is low
and the batteries should be recharged or replaced. If the batteries are
not charged, an audio tone will then sound to warn the user that the
batteries are almost discharged.
Battery Usage
The time taken to discharge the batteries will depend on how you use
the TX670. The 1500 mAh batteries supplied are powerful enough for a
full days use under average conditions.
Conserving Battery Power
The TX670 has built-in power saving features to help you get the
maximum amount of time between charges. If you need to operate your
TX670 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 batteries.
Standby Mode
The TX670 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 batteries. As soon as a signal is heard or the keys
are pressed the TX670 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
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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.
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.
RECEIVINg SIgNALS
While the TX670 is not receiving signals, it will remain in the Standby
mode to conserve battery power.
When a signal is received, the LED indicator on the upper edge of the
radio will light green and the
the Volume control for a comfortable listening level.
INSTRUCT IO N MA N UA L

gENERAL OPERATION

icon will appear on the display. Adjust
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