1. Antenna
2. Watertight Ext. Speaker/Mic Jack — Unscrew the cap and insert an approved mic/speaker for convenient operation.
3.
4. Squelch Control — Rotate clockwise to hear strong signals without noise or static and weak signals with a minimum level of noise..
5. Wrist Strap Anchor — Thread and loop the supplied wrist strap to conveniently carry the radio.
6. WX/ALERT — Press briefly to change the mode to Weather Channel reception. Press and hold to activate the Weather Alert feature.
7. SCAN/MEM — Press to set Normal Channel Scan on or off. Press and hold to store or remove the current channel into and out of memory.
8. BAND/1/2.5/5W — Press briefly to change bands. Press and hold to select the output power unless fixed by regulations.
9.16/9/TRI — Press briefly to switch to the Coast Guard/
Distress/Hailing Channel 16 or the secondary Calling Hailing
Channel 9. Press and hold to enable TripleWatch or Dual
Watch monitoring.
10. MENU — Press to display the
11.ENTER — Press to select or store a chosen menu option.
12.▲ and ▼ — Press to select channels above or below your currently selected channel. Press and hold to change channels rapidly. Press to scroll through a band’s menu selections.
13. Belt Clip
18 | Uniden MHS550 Radio Owner’s Manual |