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Radio Shack 21-1905 - Using Key Tone and Vibrate; Using VOX; Using APO; Using Hi;Lo transmitter power

Radio Shack 21-1905
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Using Key Tone and Vibrate
You can set the radio so it sounds a tone when you press any key except PTT or FUNC key. And
you can set the radio vibrate to alert received a signal when the radio is idle for 30 seconds.
To turn on the key tone and vibrate feature, press MENU key to activate the Menu function and
press UP or DOWN key until icons and ON appears. Press PTT key to store the setting.
To turn off the key tone and vibrate feature, press MENU key to activate the Menu function and
press UP or DOWN key until icons and OFF appears. Press PTT key to store the setting.
To turn on the key tone and turn off the vibrate feature, press MENU key to activate the Menu
function and press Up or Down key until icons and ON appears. Press PTT key to store the
setting.
To turn off the key tone and turn on vibrate feature, press MENU key to activate the Menu
function and press Up or Down key until icons and ON appears. Press PTT key to store the
setting.
When no keypress found in Menu mode, the radio will exit without save after 20 seconds.
Using VOX
Vox operation allows you to transmit voice message without pressing any key. To activate VOX,
continually press MENU key until VOX appears. Press UP or DOWN key to select the desired
level (There are four levels of sensibility 1 ~ 4, i.e. Lo ~ Hi ), select OFF to turn off this function.
Press PTT key to store the setting. When no keypress found in Menu mode, the radio will exit
without save after 20 seconds.
Note:
You still can send a page to the other FRS radio in VOX mode when the keys are
locked.
Using APO
You can set the radio to automatically power off when the radio is idle (no any key pressed or Tx
or Rx) for 30, 60 or 90 minutes. To turn this feature ON/OFF, continually press MENU key until
APO and 30, 60, 90 or OFF appears, press UP or DOWN key to select the desired one, if you
select OFF, the radio will not automatically power off. Before the radio shuts off, the radio will
alert beep sounds. After auto power off, the radio can be wake up by any key press when rotary
switch in ON state.
Using Hi/Lo transmitter power
You can set the radio transmit power is 0.5W or 2W. The transmit power of channel 8-14 is fixed
at 0.5W only (FRS channel). To select 2W transmit power, make sure that the channel isn’t 8-14
and then press MENU key until Lo icon appears, if you select OFF, the radio transmit power is
2W, select ON to set the transmit power is 0.5W. When no keypress found in Menu mode, the
radio will exit without save after 20 seconds.
Note:
No Hi/Lo transmit power selection when Channel number is 8-14 (FRS Channel).

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