63FT-8900R Operating ManualMenu #21 [LOCK]Function: Enables/disables the Key/Button Lock feature.Available Values: ON/OFFDefault: OFFMenu #22 [LOCKT]Function: Enables/disables the PTT Lock feature.Available Values: OFF/BAND R/BAND L/BOTHDefault: OFFOFF: Enables the PTT switch.BAND R: Disables the PTT switch on the “right” band.BAND L: Disables the PTT switch on the “left” band.BOTH: Disables the PTT switch on the “both” band.Menu #23 [MIC]Function: Selects the microphone type to be used.Available Values: MH-48/MH-42Default: Depends on transceiver version.Menu #24 [MUTE]Function: Selects the Audio Mute mode.Available Values: OFF/TX/RX and TX/RXDefault: OFFOFF: Disables the Audio Mute feature.TX: Reduces the audio level of the “Sub” band whenever you transmit on the “Main”band.RX: Reduces the audio level of the “Sub” band whenever you receive a signal on the“Main” band.TX/RX: Reduces the audio level of the “Sub” band whenever you receive a signal on the“Main” band or you transmit on the “Main” band.Menu #25 [NAME]Function: Stores an Alpha-Numeric “Tag” for a memory channel. See page 33 for details.Menu #26 [PCKT S]Function: Sets the transceiver’s circuitry for the Packet baud rate to be used.Available Values: 1200bps/9600bpsDefault: 1200bpsMENU (“SET”) M ODE