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VOX feature will not work without the Vox Headset Microphone.
The built in mic of uh078sx is temporarily disabled, however
accidental pressing of will cause the unit to transmit briefly.
To activate VOX
To De-activate VOX
1. Press two times.
VOX and the current VOX setting flashes.
2. Press or to select desired VOX
level (oF, 1 to 9).
3. Press and hold to store setting.
4. Install VOXHeadset (not supplied) to uh078sx.
1. Press two times.
2. Press or to select OFF ("oF").
3. Press and hold to store setting.
PTT