Uniden ATLANTIS 275 English Owners Manual - Page 21

the ▲ and ▼ keys to raise or lower the volume. In Volume Setting mode, press the VOL SQL key again to set the volume level and return to the main display. There are 16 volume levels - 0 (mute) to 15. SETTING THE SQUELCH LEVEL The squelch feature reduces static on the speaker by filtering out any background channel noise. At the lowest squelch level, the speaker plays all signals, including any channel noise. Setting the squelch level higher filters out noise and lets only actual radio transmissions through. Strong signals Weak signals Noise No Squelch Medium Squelch High Squelch To adjust the squelch level, press and hold the VOL SQL key. The screen displays SQL and a squelch level number (0 - 3). Use the ▲ and ▼ keys to adjust the squelch level. In Squelch Setting mode, press and hold the VOL SQL key again to set the squelch level and return to the main display. ## Note: Setting the squelch level too high may prevent you from hearing weaker transmissions. If you are having difficulty hearing a transmission, try setting the squelch level lower. CHANGING THE CHANNEL Press the ▲ and ▼ keys briefly to scroll through the channels one channel at a time. Press and hold the ▲ or ▼ key to quickly scroll through the channels. Uniden Atlantis 275 Radio Owner's Manual E-15