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DUAL TONE SQUELCH SYSTEM (DTSS)
DTSS provides a more refined method than CTCSS to
selectively communicate with specific stations. The squelch
on the transceiver opens only when the same 3-digit DTMF
(Dual Tone Multi-Frequency) code is received that is
programmed in this transceiver. You can select a 3-digit
code from among 1000 combinations, 000 to 999.
Note:
◆
Be aware that audible DTMF tones from other transceivers near you
may be picked up by your MC-53DM or MC-45 microphone. If so,
this could prevent the functions described in this chapter from working
correctly.
◆
DTSS does not function while you are storing DTSS codes even if a
code is received that matches one already stored in memory.
STORING DTSS CODES
1 Select the desired band.
2 Press
[F], [DTSS]
to switch the DTSS function ON.
• "DT" appears.
3 Press
[F] (1 s), [C.SEL]
.
• The current DTSS code appears with the first digit
blinking. The default is 000.
4 Use the Tuning control or Mic [UP]/[DWN] to select the
first digit.
• When using the MC-53DM microphone, you can select
three digits by simply pressing numeric keys in sequence.
5 Press
[
ss
ss
s
]
.
• The second digit blinks.
6 Repeat Steps 4 and 5 to select the second and third
digits.
7 To switch the DTSS function OFF, repeat pressing
[F]
,
[DTSS]
twice.
Note: The selected DTSS code also can be stored in a memory channel
or the Call channel.
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