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1
DTSS provides a more refined method than CTCSS to
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selectively communicate with specific stations. The squelch
on the transceiver opens only when the same 3-digit DTMF
3
(Dual Tone Multi-Frequency) code is received that is
4
programmed in this transceiver. You can select a 3-digit
code from among 1000 combinations, 000 to 999.
5
Note:
6
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,
7
this could prevent the functions described in this chapter from working
correctly.
8
DTSS does not function while you are storing DTSS codes even if a
code is received that matches one already stored in memory.
9
10
STORING DTSS CODES
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1 Select the desired band.
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2 Press [F], [DTSS] to switch the DTSS function ON.
13
•
"DT" appears.
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1
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50
DUAL TONE SQUELCH SYSTEM (DTSS)
3 Press [F] (1 s), [C.SEL] .
•
The current DTSS code appears with the first digit
blinking. The default is 000.
1
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.
s s s s s
5 Press [
] .
•
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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