Audiovox GMRS762CH Owner's Manual page 14

The CTCSS mode can be turned off by selecting the oF icon as the set-
ting.
NOTE: To communicate with other GMRS/FRS units, they must be
switched to the same channel and CTCSS subcode. To commu-
nicate with other GMRS/FRS units that do not have subcodes,
switch your unit to the same channel with the subcode set to oF.
The CTCSS subcodes do not prevent others from hearing your
transmission. This will only allow you to ignore all traffic on a
given channel not using the same subcode.
Transmit Power Selection Mode
This feature permits selection of the transmitting power level to high
or low. When operating on FRS only channels (8-14), no power selection
is possible or is displayed. Using low power, the unit will have a lower
transmit range, but battery life will be increased.
To access the transmitter power selection function:
- From GMRS/FRS standby mode (shared channels 1-7 or GMRS
only channel (15-22) selected), press the MODE Button three times
until the power HI or LO indication appears with a flashing Pr indica-
tion on the display.
- Press the Up or Down button to toggle between the High and Low
selections.
- Press the PTT button momentarily to confirm selection.
VOX Sensitivity Level Selection
This selection enables you to set the sensitivity level to compensate for
ambient noise in your immediate area. A VOX sensitivity of 2 represents
high sensitivity, and should be used in a relatively quiet surrounding.
A VOX sensitivity of 1 represents low sensitivity and should be used in
a noisy environment.
To set the VOX sensitivity level:
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