Controls and functions – Uniden 880 User Manual
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Controls anD FUnCtions
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1. Volume Control knob with Power On/Off. Turn the knob
clockwise until it clicks to turn power on or counterclockwise until
it clicks to turn power off.
2. SQUELCH knob: Reduces background noise when there is no
incoming signal.
3. S/RF/CAL/SWR Meter: Displays Send/Receive signal strength, RF
Power, and SWR reading.
4. Channel Number display.
5. Operation buttons and associated LEDs:
Talkback: Talkback lets you monitor yourself when transmitting.
Press Talkback to activate the function (LED = on). With Talkback
active, press PTT and adjust the volume with the Volume Control
knob. (Levels 00 - 15)
MIC Gain: Adjusts microphone sensitivity. Delivers up to 100%
modulation. With MIC Gain active, press PTT and adjust the gain
levels with the Volume Control knob. (Levels 00 - 04)
If Talkback is on when MIC Gain is also on, Talkback volume increases.
Weather: Press to toggle between Weather and CB channels. Turn
Channel Selector to cycle through the 7 weather channels. (LED
off = CB channels; LED on = Weather channels)
Press and hold to turn Weather Alert on and off. ALERT displays.
Day/Night: Adjusts LCD backlight sensitivity between Day and
Night modes. (LED off = Day; LED on = Night)