From The N3UJJ.COM Document LibraryFrom The N3UJJ.COM Document LibraryINHIBITING THE TRANSMITTERThe transmit function can be disabled to preventunauthorized individuals from transmitting, or to eliminatethe risk of yourself accidentally transmitting.1 Press [CALL]+ POWER ON to select Menu Set-up.2 Turn the ENC/SQL control to select Menu No. 05.• The current Transmit Inhibit status appears.• The default is "OFF".APOI sriCCc !.I' ' C/5 s3 Press [CALL] to select "OFF" or "ON".• OFF: Enables transmitter ("TX.S" disappears).• ON : Inhibits transmitter ("TX.S" appears).""''4 Press any key other than [CALL], [LAMP], or [MONI]to exit Menu Set-up.If [PTT] is pressed while Transmit Inhibit is ON, yourtransceiver beeps and will not transmit. The PTT switchon any microphone configured for remote control withthis transceiver also will be disabled. OnTH-228TH-42E versions, the 1750 Hz tone cannot betransmitted while Transmit Inhibit is activated.20BUSY FREQUENCY LOCK-OUTA method of inhibiting the transmitter when the currentreceive frequency is busy. is provided. This feature canhelp to eliminate "doubling" (simultaneous transmissions)with other stations.1 Press [CALL]+ POWER ON to enter Menu Set-up.2 Turn the ENC/SQL control to select Menu No. 14.• The current Busy Frequency Lock-out statusappears.• The default is "OFF".-·--I I lri.J.Ot. !.I I IAPO s3 Press [CALL] to select "OFF" or "ON".• OFF: Enables transmitter on a busy frequency.• ON : Inhibits transmitter on a busy frequency.4 Press any key other than [CALL), [LAMP], or [MONI]to exit Menu Set-up.