Audiovox GMRS-1535 - Manual (Page 14)

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- Press the SCAN button; the radio will begin scanning for all tone
codes (00–38) relative to the current main channel selection.
- To disable the tone code scan, press the SCAN button again, and the
radio will return to normal operation.
Dual Watch Mode
This feature allows you to monitor two channels at the same time. While in
dual watch mode, the unit will continuously monitor both the primary and
dual watch channel. Received signals will be played for 5 seconds, then
the unit will resume scanning the two channels. Pressing the PTT button
during a received transmission will set the unit to transmit on the same
channel. Pressing the PTT button when no signal is received will set the
unit to transmit on the primary channel.
To set the Dual Watch Mode:
- From GMRS standby mode, press the MODE button 5 times; the DW
icon flashes on the display. If the dual watch mode is off, the oF icon
will also appear flashing.
- To enable the dual watch mode, press the Up or Down button; the dual
watch channel number will flash and start to increment up or down as
the Up or Down button is pressed.
- Press the MODE button again to select the CTCSS function and select
the CTCSS code if desired for the dual watch channel just
selected.
- Press the Power On/Off button to confirm selection of the dual watch
channel. The display will now alternate between the primary channel
and the dual watch channel just selected.
Momentarily press the SCAN button to exit the dual watch mode.