Audiovox GMRS2572CH Monitor/Keylock Button, Push To Talk PTT Button, Up Channel/Volume Button

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volume. The display will indicate the current volume level between 0 and 7 by the small number in the icon ( UL 5 ).

Monitor/Keylock Button (2)

This button is used to check activity on the current frequency before transmitting. Check activity by pressing the Monitor (M) Button longer

than 2 seconds; the icon will apppear on the display and you will hear static if frequency is clear. Do not transmit if you hear conversation.

Hold down the Monitor Button again longer than 2 seconds and the icon will disapppear from the display.

The monitor function will temporarily bypass the squelch setting and play all signals on a given channel. This feature is useful when communicating with other parties at extreme range.

By pressing the monitor button momentarily, the keylock icon ( ) will appear to confirm that the MODE, SCAN and channel up/down button functions have been disabled.

Push To Talk (PTT) Button (4)

Pressing and holding this button will allow you to speak to any transceiver that is set to the same channel and privacy code setting as yours. Hold the transceiver approximately 1 to 2 inches from your face as you speak into the built in microphone (9). After you have finished speaking, release the

PTT Button to allow reception of incoming signals. It is not possible to transmit and receive at the same time. The Transmit Signal Level indicator

( ) will display the relative strength of the transmitted signal. When receiving an incoming signal, the RX icon will appear in the upper right quadrant of the display. The PTT button can also be used as a two-way call ringer. Pressing the button twice quickly will call another party on the same channel.

Up Channel/Volume Button (10)

In the standby mode, pressing this button will increase the listening volume. When in function edit mode this button will be used to adjust the unit’s settings.

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Contents Model GMRS2572CH 128-7973 Performance Safety InformationBattery Disposal Battery CareModel GMRS2572CH FCC License Required Model GMRS2572CH Display Powering theTransceiver Equipment and Accessories SuppliedBatteries Installing the batteriesCharging LED Flashlight Button Power On-Off/SCAN ButtonAdjusting the Volume 10 Push To Talk PTT Button Up Channel/Volume ButtonMonitor/Keylock Button External Microphone MIC/Speaker SPK/CHG Jack VOX Button Down Channel/Volume ButtonGmrs Operation Mode/Weather ButtonChannel Selection Ctcss Mode Sub-Channel SelectionTransmit Power Selection Mode VOX Sensitivity Level Selection Dual Watch ModeRoger Beep Tone Key ToneChannel Scan Operation Call Ringer Selection ModeWeather Band Operation Channel Selection Auto Key Lock Selection ModeVOX Enable Operation Display Backlight Enable OperationWeather Alert Mode Charging Procedure Battery Alert128-7973 Troubleshooting Transmitter Power SupplyGeneral ReceiverMain 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