Kenwood TM-441A User Manual download pdf (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.

DTSS

r n n n

L и и и

SSRF

---

-------

--------

S-------

--------

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OVER —

• 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

3 1

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Kenwood TM-441A User Manual Page 31

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