Audiovox GMRS2572CH owner manual Transmit Power Selection Mode

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are 38 CTCSS sub-channels for each main channel. A different subcode may be selected for each of the 22 channels.

To change the CTCSS sub-channel:

-From GMRS/FRS standby mode, press the MODE Button twice; a flashing oF or sub-channel number is displayed. If oF is displayed, press the Up or Down button to enable the CTCSS mode.

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

-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/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 (8-15), no power selec- tion 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, M or Lo indication appears with a flashing Po indication on the display.

-Press the Up or Down button to toggle between the High, Middle and Low selections.

-Press the PTT button momentarily to confirm selection.

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Contents Model GMRS2572CH 128-7973 Safety Information PerformanceBattery Care Battery DisposalModel GMRS2572CH FCC License Required Model GMRS2572CH Display Equipment and Accessories Supplied Powering theTransceiverInstalling the batteries BatteriesCharging LED Flashlight Button Power On-Off/SCAN ButtonAdjusting the Volume 10 Push To Talk PTT Button Up Channel/Volume Button Monitor/Keylock Button Mode/Weather Button Down Channel/Volume ButtonGmrs Operation External Microphone MIC/Speaker SPK/CHG Jack VOX ButtonCtcss Mode Sub-Channel Selection Channel SelectionTransmit Power Selection Mode Dual Watch Mode VOX Sensitivity Level SelectionKey Tone Roger Beep ToneCall Ringer Selection Mode Channel Scan OperationDisplay Backlight Enable Operation Auto Key Lock Selection ModeVOX Enable Operation Weather Band Operation Channel SelectionWeather Alert Mode Battery Alert Charging Procedure128-7973 Troubleshooting Receiver Power SupplyGeneral TransmitterMain Channel Frequencies Available Weather Channel Frequencies Freq. MHz Continuous Tone Coded Squelch System Tone Frequencies in HzFreq. Hz DAY Limited Warranty Audiovox Electronics Corp., Hauppauge, NY 128-7973