Ctcss Mode Sub-Channel Selection | Audiovox GMRS1200CH specification

-Press the Up Button (10) briefly to move to the next higher main channel number.

-Press the Down Button (11) briefly to move to the next lower main channel number.

CTCSS Mode (Sub-Channel) Selection

The Coded Tone Controlled Squelch System (CTCSS) provides 38 Sub-Fre- quencies. This feature allows you to utilize the coded squelch tones (01–

38)within a main channel. This enables you to communicate with another party on the same main channel using the same subcode. (This filters out unwanted transmissions without the same coded squelch tone). There are 38 CTCSS Sub-channels for each main channel. A different subcode may be selected for each of the 15 channels.

To change the CTCSS Sub-channel:

-From GMRS standby mode, press the MODE Button twice; a flashing oF or sub-channel number is displayed, together with the flashing CTC icon. If oF is displayed, press the Up or Down button to enable the CTCSS mode; the CTC icon will also flash on the display with the flashing sub-channel number.

-Then press the Up or Down button to select the desired sub-channel for use.

-Press the PTT button momentarily to confirm selection.

The CTCSS mode can be turned off by selecting the oF icon as the setting. NOTE: To communicate with other GMRS units, they must be switched to

the same channel and CTCSS subcode. To communicate with other GMRS 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.

VOX Selection Mode

This option enables you to have hands-free conversation. Your voice or