the HI or LO icon will be displayed. Communication with Audiovox GMRS/ FRS and compatible units is possible on these 22 channels. Before trans- mitting on the selected channel, press the Monitor (M) Button (2) to check the activity on that channel. If there is activity on the selected channel, change to another channel that is clear.

To change the channel:

-From GMRS/FRS standby mode, press the MODE button (12) once; the channel number flashes.

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

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

-Press the PTT button momentarily to confirm selection.

CTCSS Mode (Sub-Channel) Selection

The Coded Tone Controlled Squelch System (CTCSS) has 38 Sub-Frequencies. This feature allows you to utilize the coded squelch tones (01-38) within a main channel and enables you to communicate with another party on the same main channel using the same subcode. (This filters out unwanted transmissions from the same main channel). Since there are 38 CTCSS Sub-channels for each main channel, a different subcode may be se- lected for each of the 22 channels.

To change the CTCSS Sub-channel:

- From GMRS/FRS standby mode, press the MODE Button twice; a flash- ing oF or sub-channel number is displayed.

-Press the Up or Down button to select the desired sub-channel for use (01-38).

-Press the PTT button to confirm selection.

The CTCSS mode can be turned off by selecting the oF icon as the setting.

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Audiovox GMRS6000-2 owner manual Ctcss Mode Sub-Channel Selection