GME TX6500S - Manual (Page 38)

3 8 I N S T R U C T I O N M A N UA L T X 6 5 0 0 S
CONSERVING YOUR BATTERY POWER
The TX6500S 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 TX6500S 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.
Sleep mode
The TX6500S will automatically enter the ‘Sleep’ mode after around 20 seconds of inactivity (i.e. no
transmission or reception). While sleeping, it will still check for incoming signals but it will draw only
about one fifth of the power from the battery. As soon as a signal is received or any keys are pressed,
the TX6500S will wake up again. This sleep function is automatic and by itself can greatly extend the
battery life in standby mode by many hours.
Quiet mode
If ‘Quiet’ mode is selected, the TX6500S will remain ‘asleep’ on Quiet channels even if they are busy
unless your SelCall Ident is received.
Scanning
The TX6500S draws more power from the battery when scanning than when monitoring a single
channel. This is because it must wake more often to monitor each channel for activity. You can
squeeze that extra bit of life from the battery by avoiding any unnecessary scanning. In addition,
scanning several channels increases the chance of finding a signal thereby keeping the receiver
awake and the Squelch open more often.
Low Transmit power setting
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 transmit power
setting. This reduces the transmitter power from 5 Watts to 1 Watt, effectively tripling the ‘talk’
time available.
General
Continuously monitoring a busy channel will reduce the battery life because incoming signals will keep
the receiver awake and the Squelch will stay open for longer periods of time. This will draw much more
power from the battery pack. If you are expecting to receive a SelCall on a busy channel, program that
channel for ‘Quiet’ operation and select the Quiet mode. The TX6500S will then stay ‘asleep’ until your
SelCall Ident is received.
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