Kenwood TM-441A - Manual (Page 31)

5-8 DTSS (Dual Tone Squelch System)
OPERATION [Requires optional DTU-2]
This function allows 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 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, squelch is turned off
until a matching code is again received.
CTCSS signal cannot pass through the repeater, but
DTSS signal can pass through the repeater.
NOTE
This function is not available in some areas.
The DTSS (or PAGIMG) cord may not be accepted if the
repeater is “identifying”. If this should occur you should press
the PTT switch again, and retransmit the DTSS (or PAGING)
cord.
There are two recommended methords of compensating for
this situation.
1. Press the PTT switch for a few seconds, send the DTSS (or
PAGNG) cord, release the PTT switch, then press the PTT
switch again and resend the appropriate cord.
2. Proper DTSS (or PAGING) operation will occur if you ensure
the battery saver circuit is disabled whenever you intend to
operate using eithr the DTSS or PAGING modes.
5-8-1 Selecting and Storing the DTSS code
DTSS codes from 000 through 999 can be selected from
the VFO mode and stored in memory channels
Memory channels 1 through 3 can each store a separate
DTSS code.
Memory channels 4 to 20 and the call channel cannot
store DTSS codes, but a DTSS code can be set each
mode.
5-8-2 DTSS Code Selection
When DTMF unit DTU-2 [option] is installed, the initial
setting is 000.
/
D T S S
r n n n
L и и и
S S R F --- \ -------3--------S -------7--------9-------O V E R — J
• Selecting and Storing the DTSS code with
the VFO
1. Press the DR/DT key to light the DTSS indicator.
2. Press the F key, then press the DR/DT key while the F
indicator is on (10 seconds). The first digit of the DTSS
code will flash.
3. Select the first digit by rotating the Tuning control.
4. Press the DR/DT key. The first digit is registered and
the second digit begins to flash.
5. Select the second digit by rotating the Tuning
control.
6. Press the DR/DT key. The second digit is registered
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