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down the radio automatically.
Rotate the VOL/PWR knob counter-clockwise to the "off" position, then clockwise out of the
click-stop, to turn the radio on after an APO shutdown.
Transmitter Time-Out Timer (TOT)
The TOT feature provides a safety switch which limits transmission time to a
pre-programmed value. This will promote battery conservation by not allowing you to make
excessively-long transmissions, and in the event of a stuck PTT switch (perhaps if the radio
or a Speaker/Mic is wedged between car seats) it can prevent interference to other users as
well as battery depletion. As configured at the factory the TOT feature is set to OFF, and here
is the procedure for activating it:
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 47: TOT.
3.
Press the [F/W] key momentarily to enable adjustment of this Set Mode Item.
4.
Rotate the DIAL knob to set the Time-Out Timer to the desired "Maximum TX" time
(between 1 and 30 minutes), or OFF.
5.
When you have made your selection, press the PTT switch to save the new setting and
exit to normal operation.
R.F. Says: 1) When your transmission time is within 10 seconds of the Time-Out Timer
expiration, an Alert bell will provide an audible warning from the speaker.
2) Since brief transmissions are the mark of a good operator, try setting up your radio's TOT
feature for a maximum transmission time of one minute. This will significantly improve battery
life, too!
Busy Channel Lock-Out (BCLO)
The BCLO feature prevents the radio's transmitter from being activated if a signal strong
enough to break through the "noise" squelch is present. On a frequency where stations using
different CTCSS or DCS codes may be active, BCLO prevents you from disrupting their
communications accidentally (because your radio may be muted by its own Tone Decoder).
The default setting for the BCLO is OFF, and here is how to change that setting:
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 5: BCLO.
3.
Press the [F/W] key momentarily to enable adjustment of this Set Mode Item.
4.
Rotate the DIAL knob to set this Set Mode Item to "BCL. ON" (thus activating the BCLO
feature).
VX-120/170 O
50/64
FCC ID: K6620223X20
IC ID: 511B-20223X20
M
PERATING
ANUAL
Vertex Standard Co., Ltd.
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