Operation26UNIDEN UH5045 UHF CB TransceiverSelecting the Call tone1. Press [MENU/ENTER] three times.The call tone setting flashes.2. Turn the Rotary Channel Selector at thebase or press on the RemoteSPK/MIC to change the setting between 1, 2, 3, 4 and 5.3. Press [MENU/ENTER] to store the setting.4. Press and hold [MENU/ENTER] to exit from the menu mode.NOTEIf a button is not pressed within 10 seconds the UHF CB Radio willautomatically exit the Menu Mode.Busy Channel LockoutIf the channel is already in use, you can prevent the UHF CB Radio from transmitting .This is particularly important when using CTCSS/DCS.1. Press [MENU/ENTER] four times. The BCL setting flashes.2. Turn the Rotary ChannelSelector at the base orpress on the RemoteSPK/MIC to change thesetting between ON or OFF.3. Press [MENU/ENTER] tostore the setting.4. Press and hold [MENU/ENTER] to exit from the menu mode.NOTEIf a button is not pressed within 10 seconds the UHF CB Radio willautomatically exit the Menu Mode.