Uniden MHS450 English Owners Manual - Page 29

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 the MENU button while the radio is idle. Select Key Beep and then Off. Press ENTER to save the new setting. 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 Uniden dealer or contact Uniden directly (see back cover for contact information). Maintenance and Troubleshooting Due to its rugged design, the MHS450 requires very little maintenance. However, it is a precision electronic instrument, so you should follow a few precautions: • If the antenna has been damaged, do not transmit except in an emergency situation. Transmitting with a defective antenna may cause further radio damage. • You are responsible for continued FCC technical compliance of your radio. • You should arrange for periodic performance checks with your Uniden dealer. Uniden MHS450 Radio Owner's Manual 25