309 Operator Selectable Tone9.1 OverviewThis function allows you to change theDecode/Encode combination of the QT/DQTSignalling without changing the transmit/receivefrequencies.This function is used when there are several TalkGroups using QT/DQT codes on the same frequency.You can program up to 16 QT/DQT signalling pairsusing the OST table.Press the [OST] key then use the Selector to choosea new Decode/Encode combination for QT/DQTSignalling.The signalling operates with the newly selectedEncode/Decode combination.9.2 Function Description9.2.1 OST NameThis function allows you to store a name for theDecode/Encode combinations of the QT/DQTsignalling used, on the OST table.You can program up to 8 characters for the OSTName using the following characters:(space) # $ % ( ) * + , - / 0 1 2 3 4 5 6 7 8 9 = @ \ _ AB C D E F G H I J K L M N O P Q R S T U V W X Y Z“TONE 1” - “TONE 16” appears when an OST Nameis not programmed.9.2.2 QT/DQT DecodeThis function allows you to program the QT/DQT forreception.You can program the QT/DQT Decode using the FPUtable.QT: 67.0 - 254.1 Hz (Select from the table.)67.0 - 254.1 Hz/ 0.1 Hz step (Enter thevalue directly.)DQT: 023N - 754N, 023I - 754I (Select from thetable.)000N - 777N, 000I - 777I (Enter the valuedirectly.)9.2.3 QT/DQT EncodeThis function allows you to program the QT/DQTcode for transmission.You can program the QT/DQT Decode using the FPUtable.QT: 67.0 - 254.1 Hz (Select from the table.)67.0 - 254.1 Hz/ 0.1 Hz step (Enter thevalue directly.)DQT: 023N - 754N, 023I - 754I (Select from thetable.)000N - 777N, 000I - 777I (Enter the valuedirectly.)