23OperationUHF CB RadioUNIDEN UH720SX-NB/UH710SX-NBCall ToneYour UH710SX-NB/UH720SX-NB radio is equipped with 5 selectable call tonesthat will be transmitted when is pressed and held.1. Press eight times. The current call tone setting flashes.2. Press or to select desired setting.The 5 call tones are C1, C2, C3, C4 and C5.3. Press and hold to save and exit.NOTECurrent regulations require calling tones to be restricted to onetransmission per minute. If a second transmission is attemptedwithin one minute then an error tone will sound.Roger BeepRoger Beep is a BEEP that is sent to notify the end of transmission (both PTTand VOX transmission.) Roger Beep can be heard through the speaker whenKey Beep is on. Roger Beep is transmitted even if Key Beep is turned off.However, Roger Beep will not be heard from the speaker.1. Press nine times. The current Roger Beep setting flashes.2. Press or to select desired setting.3. Press and hold to save and exit.Key BeepAssures the user that the keypad has been properly pressed by emitting abeep tone. This tone can be switched on or off.1. Press ten times. The current Key Beep setting flashes.2. Press or to change selection.3. Press and hold to save and exit.