GME GX620 - Manual (Page 12)

PAGE 12 INSTRUCTION MANUAL GX620
POWER HIGH/LOW
This feature permits selection of the transmit power level to HIGH (5 watts) or LOW
(1 watt). The LCD indicator will display ‘HI’ when it is in the high power mode.
Using low power, the radio will have a lower transmit range but the battery life will
be increased.
Press both the PTT button and the button to select LOW power. The LCD indicator,
‘HI’ will disappear. To return to high power, press again the PTT and button.
SQUELCH LEVEL ADJUSTMENT
This function allows you to adjust the Squelch level of your radio. To change the
Squelch level, press the Squelch/Monitor button briefly. The current Squelch
setting will appear. Use the or button to change the setting. Press the PTT
button or wait for 5 seconds to store your choice. There are 8 Squelch levels. Level
91 is the most sensitive (open) and level 98 is the least sensitive (closed). Auto (Ao)
is the optimum factory setting and ‘Off’ is fully open, with constant static noise.
MONITOR
The Monitor function is used to briefly check for activity on the current channel. It is
the same as setting the Squelch level to level 91 or fully open.
To activate or deactivate the Monitor press the Squelch/Monitor button for
about 2 seconds. The Monitor icon ‘ ‘ will appear and you will hear background
static noise.
KEYPAD LOCK
To toggle the Keypad Lock, briefly press Keypad Lock button. The Keypad Lock
icon ‘ ‘ appears when the lock is on.
CHANNEL 16
The channel 16 (Distress channel) is used to initially contact another radio station for
emergency communications. This channel is automatically monitored during Dual Watch and
Triple Watch. Upon stand-by, you must monitor channel 16.