FCC ID: K6620285X20
IC ID: 511B-20285X20
VX-3R Operating Manual
Note: Do not forget to pull the DIAL knob to rotate the DIAL knob.
3. Press the [TXPO] key momentarily to enable adjustment of this Set Mode Item.
4. Rotate the DIAL knob to set this Set Mode Item to “OFF” (thus disabling the BUSY lamp).
5. When you have made your selection, press the PTT switch to save the new setting and exit to normal
operation.
Automatic Power-Off (APO) Feature
The APO feature helps conserve battery life by automatically turning the radio off after a user-defined
period of time within which there has been no dial or key activity. The available selections for the time
before power-off are 0.5 - 12 hours (0.5 hour/step), as well as APO Off. The default condition for the APO is
OFF, and here is the procedure for activating it:
1. Press and hold in the [TXPO] key for one second to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 4: APO.
Note: Do not forget to pull the DIAL knob to rotate the DIAL knob.
3. Press the [TXPO] key momentarily to enable adjustment of this Set Mode Item.
4. Rotate the DIAL knob to select the desired time period after which the radio will automatically shut
down.
5. When you have made your selection, press the PTT switch to save the new setting and exit to normal
operation.
When the APO is activated, the “TIMER” icon will appear at the center bottom on the LCD.
If there is no
action by you within the time interval programmed, a ringer sounds 3 minutes before the APO shutdown
time. Three minutes thereafter, the microprocessor will shut down the radio automatically.
Just press and hold in the POWER switch for one second to turn the transceiver back on after an APO
shutdown, as usual.
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 and hold in the [TXPO] key for one second to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 87: TOT.
Note: Do not forget to pull the DIAL knob to rotate the DIAL knob.
3. Press the [TXPO] 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. The available
Vertex Standard Co., Ltd.
64