Uniden MHS125 owner manual Maintenance and Troubleshooting, Turning the Key Beep On and Off

With the
SOS LED in	Do This -	For this -
this state -
OFF	Press and hold MEM-	SOS LED signals
	SOS key for 2 seconds.	SOS in Morse code.
SOS	Press and hold MEM-	SOS LED remains
	SOS key for 2 seconds.	on continuously.
Continuous	Press and hold MEM-	SOS-LED turns off.
	SOS key for 2 seconds.

Turning the Key Beep On and Off

Key beep is the tone that sounds when you press a key or a button. To turn off the key beep, press and hold the Channel Up or Channel Down button while turning ON the radio. To turn on the key beep, turn off the radio and then press and hold the Channel Up or Channel Down button while turning ON the radio again.

Using the External Speaker/Mic Jack

You can connect an optional external speaker-mic to this watertight jack. Unscrew the cap, which is held by the rubber cap-keeper to prevent loss. Insert the special gasketed plug and screw down the shell, which assures prevention of water entering the jack. Two available units are

HHSPM Speaker Mic

VOX100 Headset Mic.

For details, consult your dealer or contact Uniden directly (see back cover for contact information).

Maintenance and Troubleshooting

Due to its rugged design, your radio requires very little maintenance. However, it is a precision electronic instrument, so you should follow a few precautions:

E-20 Uniden MHS125 Radio Owner’s Manual