Icom IC -2410A Instruction Manual page 37

B Code squelch operation
An optional UT-55 DTMF ENCODER/DECODER UNIT is
necessary for this operation. This function can be
activated on the MAIN band only and cannot be
activated while accessing the SUB band. (p. 15)
(1) Pre-operation
1) Decide the ID code for each transceiver and the
group code in your group.
2) Program your ID code, group code, and the other
stations' ID codes as transmit codes. See p. 31
for details.
e CODE SQUELCH OPERATION EXAMPLE
Your station (ID code: 147)
ID code is programmed
in the code channel O.
The displayed code
is selected as a
transmit code. Other station (ID code: 456)
SELECTIVE CALLING 10
(2) Code squelch operation
1) Set the operating band and frequency.
2) Push [PGR/CS] 1 or 2 times to indicate "C SQL."
3) Push [SET] to call up a code channel.
e Code channel number blinks.
5) Push the PTT switch to transmit the 3-digit trans-
mit code.
e When the transmit code is the same as the other
stations ID code or group code, the other
station's code squelch opens.
6 When your ID code or pre-programmed group
code is received, your code squelch opens until
the signal disappears.
7) Operate the transceiver for normal communications.
8) To cancel the code squelch function, push [PGR/
CS].
NOTE: Make sure the code channel is correct
when operating code squelch after using the pager
function.