Yaesu VX-127 Operating Manual page 64

M
ISCELLANEOUS
An important feature of the VX-127 is its Receive Battery Saver, which "puts the radio to
sleep" for a time interval, periodically "waking it up" to check for activity. If somebody is
talking on the channel, the VX-127 will remain in the "active" mode, then resume its
"sleep" cycles. This feature significantly reduces quiescent battery drain, and you may
change the amount of "sleep" time between activity checks using the Set Mode:
1. Press the [ SET ( ) EMG ] key momentarily to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 37:
3. Press the [ F ] key momentarily to enable adjustment of this Set
Mode Item.
4. Rotate the DIAL knob to select the desired "sleep" duration. The
selections available are 200 ms, 300 ms, 500 ms, 1 second, 2
seconds, or OFF. The default value is 200 ms.
5. When you have made your selection, press the PTT switch to save the new setting and
exit to normal operation.
When you are operating on Packet, switch the Receive Battery Saver OFF, as
the sleep cycle may "collide" with the beginning of an incoming Packet trans-
mission, causing your TNC not to receive the full data burst.
The VX-127 also includes a useful Transmit Battery Saver, which will automatically lower
the power output level when the last signal received was very strong. For example, when
you are in the immediate vicinity of a repeater station, there generally is no reason to use
the High Power output in order to achieve full-quieting access to the repeater. With the
Transmit Battery Saver, the automatic selection of Low Power operation conserves battery
drain significantly.
To activate the Transmit Battery Saver:
1. Press the [ SET ( ) EMG ] key momentarily to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 49:
3. Press the [ F ] key momentarily to enable adjustment of this Set
Mode Item.
4. Rotate the DIAL knob to set this Set Mode Item to "
(thus activating the Transmit Battery Saver).
5. When you have made your selection, press the PTT switch to
save the new setting and exit to normal operation.
62
S
ETTINGS
R B
TX B
S S
RXSAVE
.
S
TXSAVE
.
SAV. ON
"
VX-127 O M