Model GXT740/785 Series
TRANSMIT (TX) POWER LEVEL SELECTION
Your GXT740/785 Series has 3 power level settings. To select the power level on channels 1~7, 15~33 and 38~42, press the MENU button until a “Pr” icon will appear blinking on the display. Then press the 
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buttons to select TRANSMIT POWER LEVEL icon (H: Hi/ M: Mid/L: Lo). To confirm, press the PTT button or press MENU button again to move to the next feature setting. When the Battery Meter
drops to 1 bar 
, the TX Power will automatically switch from Hi(H) or Med(M) to Lo(L) level.
!Note : You cannot adjust the power setting on the FRS channels (8~14 and 34~37). They are set to Low power per FCC regulations.
VOX
Your radio has 5 VOX level settings: (oF/1~5).
To set VOX, press the MENU button until the display shows “VOX” blinking while on the right of the CHANNEL NUMBER display, an “oF” icon appears. Select “1~5” by pressing the 
/
buttons and push the PTT key, or press MENU button again to move to the next feature setting.
VOX will be more sensitive on the “1” setting than on the “5” setting. To turn VOX off, press the MENU button until the display shows “VOX” blinking while on the right of the CHANNEL NUMBER display, a “1~5” icon appears. Select “oF” by pressing the 
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buttons and push the PTT key, or press MENU button again to move to the next feature setting.
SILENT OPERATION
Your GXT740/785 Series has a SILENT OPERATION mode. In this mode, all “beeps” and “tones” are disabled.
To turn the SILENT OPERATION mode on, press the MENU button until the display shows an “bP” icon while on the right of the “bP” display, an “on” icon appears. Select “of” by pressing the 
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buttons and push the PTT key or MENU button.
To turn the SILENT OPERATION mode off, press the MENU button until the display shows an “bP” icon while on the right of the “bP” display, an “oF” icon appears. Select “on” by pressing the 
/
buttons and push the PTT key or MENU button.
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