Kenwood TK-3131 - Manual (Page 38)

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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 “ ” (beep
on) or “ ” (beep off).
5 Press the PTT, MON, or CAL key to exit
Setting Mode.
S
IMPLEX
/ S
EMI
-D
UPLEX
O
PERATION
Simplex operation is simply transmitting and receiving between
two parties. This is how you normally operate the transceiver.
However, this transceiver is also capable of using semi-duplex
operation. In semi-duplex operation, you are able to access a
repeater, in order to transmit over longer distances. This can
be useful when a party member is out of range of normal
transmission. In order to use semi-duplex operation, a repeater
must be available in the area. Refer to the channel frequency
tables on pages 41 and 42 for the receive and transmit
frequencies when using simplex or semi-duplex operation.