Kenwood TM-741A - Manual (Page 44)

4-7. DTSS (Dual Tone Squelch System)
(Requires optional DTU-2)
This function allows the squelch to be turned on in the
receive mode on reception of a three-digit code matching
the DTSS code selected in your radio.
Once the squelch is turned on by reception of a matching
code, it operates normally from then on. If no signal is
received for longer than 2 seconds, the squelch is turned
off until a matching code is received.
NOTE
This function is not available in some areas.
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4-7-1. DTSS Code
DTSS codes from 000 through 999 can be selected from
the VFO mode and stored in memory channels and
CALL channel.
The initial setting of the DTSS Code is 000.
1. Press the DTSS key 1 or 2 times until DTSS appears
in the display.
4-7-2. DTSS Code Selection
3.
5.
OFF DTSS ON Paging ON
Press the F key for longer than 1 second and then
press the DTSS key. The display will change to the
DTSS code entry mode. (See example below.) The
digit just to the right of the “C“ will be flashing.
® _____ __________________________
more than 1
second
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Select any digit from 0-9 by rotating the Tuning
control, or by pressing the UP/DWN switches on the
microphone, then press the DTSS key. (Or press the
desired digit on the microphone keypad.)
4. After you select the first digit a beep will sound and
the middle digit will begin flashing. Select the
desired digit by using any of the methods described
above.
Select the final digit as described above. After the last
digit has been entered the display will return to the
normal frequency mode, indicating the tone selection
process has been successfully completed.
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