SIGNALINGQUIET TALK (QT)/ DIGITAL QUIET TALK (DQT)Your dealer may have programmed QT or DQT signaling on your transceiverchannels. A QT tone/ DQT code is a sub-audible tone/ code which allows you toignore (not hear) calls from other parties who are using the same channel.When a channel is set up with a QT tone or DQT code, squelch will only open whena call containing a matching tone or code is received. Likewise, signals that youtransmit will only be heard by parties whose QT/ DQT signaling matches yourtransceiver.If a call containing a different tone or code is made on the same channel you areusing, squelch will not open and you will not hear the call. This allows you to ignore(not hear) these calls. Although it may seem like you have your own private channelwhile using QT/ DQT, other parties can still hear your calls if they set up theirtransceiver with the same tone or code.o Operator Selectable Tone (OST)If a button has been programmed with [Operator Selectable Tone], you canreprogram the QT tone or DQT code on each of your channels.1 Select your desired channel.2 Press and hold the button programmed as [Operator Selectable Tone].● Alternatively, you can press the button programmed as [Menu] to enter OST Modeusing the Menu Mode.● The indicator appears on the display.3 Press the [J] and [K] buttons to select your desired tone or code from 1 to 40.4 Press the [ ] button to save your new setting.After selecting and setting up your desired tone or code, press the [Operator SelectableTone] button to activate the OST function. Press this button again to turn the OST functionoff.RADIO ACCESS NUMBER (RAN)RAN is a signaling system designed for digital radio communications.When a channel is set up with a RAN, squelch will only open when a call containinga matching RAN is received. If a call containing a different RAN is made on the samechannel you are using, you will not hear the call. This allows you to ignore (not hear)calls from other parties who are using the same channel.COLOR CODE (CC)Color Code is a digital signaling for DMR system to enable smooth communicationamong groups using the same channel.42