transmit and receive at the same time. The Transmit/Monitor LED at the upper right corner of the LCD Panel (8) will light red while the PTT Button is pressed and the signal indicator will display the relative strength of the transmitted signal.

Releasing the button allows the unit to revert to standby mode. When receiving an incoming signal, the Transmit/Monitor LED indicator will light

green and the received signal strength indicator ( ) will display the relative strenth of the signal.

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. The Transmit LED will light red for approximately 3 seconds and then go out.

Up Channel/Volume Button (10)

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

Down Channel/Volume Button (11)

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

Mode Button (12)

This button is used to select various feature settings in the GMRS or weather band mode. Holding the MODE button longer than 2 seconds will toggle between the GMRS and weather band modes.

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Univex GMRS1535, GMRS-1535 owner manual Up Channel/Volume Button