46 Function Reference Version: 1.1112 BUSY CHANNEL LOCKOUT12.1 Busy Channel LockoutThis function automatically prevents a transmission so asnot to interfere other communications.If a user transmits on a channel while other groups areusing that channel, the user may interfere withcommunications. This function prevents suchinterference.The “BUSY” icon appears on the main display when thePTT switch is pressed while this function is enabled. Thetransceiver emits a Warning Tone and does not transmit.The transceiver emits the Warning Tone until the PTTswitch is released.You can configure the Busy Channel Lockout function foreach channel using the KPG-89D. The following tableshows the conditions to inhibit transmission with the BusyChannel Lockout function.Table 12-1 Conditions to Inhibit Transmission with theBusy Channel LockoutNote:" This function is available only in Conventional Group. In aTrunking System, a user can use the TA Busy Channel Lockoutfunction. (Refer to 13.2.1 TA Busy Channel Lockout.)" This function does not work in Emergency Mode.! Configuration using KPG-89D• Configuring the Busy Channel Lockout function(Refer to FPRG 6.3.11 Busy Channel Lockout.)12.2 BCL OverrideThis function allows the transmission of data while thetransceiver channel is busy, even if the transceiver cannotnormally transmit on a busy channel. This is used forhigh priority communications.You can enable/disable this function using KPG-89D.Note: This function is available only in Conventional Group.! Transceiver operation1. Press the PTT switch while the transmission isrestricted with the Busy Channel Lockout function.2. Release the PTT switch, then press the switchagain within 500 ms.The Busy Channel Lockout function is disabledand you can transmit.! Configuration using KPG-89D• Configuring the BCL Override (Refer to FPRG6.2.11 BCL Override.)Busy Channel Lockout ConditionQT/DQT ToneThe transceiver does not transmitwhen the received QT/DQT codedoes not match the QT/DQT codeconfigured to the Channel.Optional Signaling The transceiver does not transmituntil the Option Signaling matches.Carrier OnlyThe transceiver does not transmitwhile receiving a Carrier. However,the transceiver transmits even if aCarrier exits when the Monitorfunction is enabled.
