Kenwood MASTER PROTALK TK-3131 - Manual (Page 37)

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B
USY
C
HANNEL
L
OCKOUT
This function is used in order to prevent transmitting on a
channel that somebody else is currently using. When turned
ON, a beep sounds when you press the PTT switch while
another party is using the channel, and you cannot transmit.
1 Turn the transceiver power OFF.
2 Press and hold the MENU key while turning
the transceiver power ON (for 1 second).
3 Press the ▲ or ▼ key to select “ ”.
4 Press the MENU key to select “ ” (busy
channel lockout on) or “ ” (busy channel
lockout off).
5 Press the PTT, MON, or CAL key to exit
Setting Mode.
T
RANSCEIVER
B
EEP
When you turn the transceiver power ON or press a key, a
beep will emit from the transceiver. If desired, you can turn
this feature off: