FCC ID: K6620223X20
IC ID: 511B-20223X20
VX-120/170 O
PERATING MANUAL
48/64
Vertex Standard Co., Ltd.
channel step increments, the procedure to do so is very easy.
1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 45: STEP.
3. Press the [F/W] key momentarily to enable adjustment of this Item.
4. Rotate the DIAL knob to select the new channel step size.
5. When you have made your selection, press the PTT switch to save the new setting and
return to normal operation.
Receive Battery Saver Setup
An important feature of the VX-120/170 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-120/170 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 [F/W] key, then press the [0(SET)] key to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 37: RXSAVE.
3. Press the [F/W] 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.
R.F. Says:
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 transmission, causing
your TNC not to receive the full data burst.
TX Battery Saver
The VX-120/170 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 [F/W] key, then press the [0(SET)] key to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 49: TXSAVE.
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