Yaesu VX-6E, Руководство по эксплуатации

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VX-6E O
PERATING
M
ANUAL
27
CTCSS O
PERATION
Many repeater systems require that a very-low-frequency audio tone be superimposed on
your FM carrier in order to activate the repeater. This helps prevent false activation of the
repeater by radar or spurious signals from other transmitters. This tone system, called
“CTCSS” (Continuous Tone Coded Squelch System), is included in your
VX-6E , and is
very easy to activate.
CTCSS setup involves two actions: setting the Tone Mode and then setting of
the Tone Frequency. These actions are set up by using the [MODE(SP S)
SQ TYP] key and [2(CODE)] key.
1. Press the [ F/W
] key, then press the [
MODE
(
SP S
)
SQ TYP
] key to enable selection
of the CTCSS/DCS mode.
2. Rotate the DIAL knob so that the “ TONE TONE TONE TONE TONE ” indication appears on
the display; this activates the CTCSS Encoder, for access to re-
peaters requiring a CTCSS tone.
3. Rotation of the DIAL knob one more “click” in step “2” above will cause the “
T SQL T SQL
T SQL T SQL T SQL ”
notation to appear. When “ T SQL T SQL T SQL T SQL T SQL ” is displayed, this means that the Tone SQueLch
system is active, which mutes your VX-6E ’s receiver until it receives a call from
another radio sending out a matching CTCSS tone. This can help
keep your radio quiet until a specific call is received, which may
be helpful while operating in congested areas of the band.
1
)
You may notice a “
RV TN RV TN
RV TN RV TN RV TN ” indication on the display while you rotate
the DIAL knob in this step; this means that the Reverse Tone Squelch
system is active, which mutes your VX-6E’s receiver (instead of opening
the squelch) when it receives a call from the radio sending a matched CTCSS tone.
The “
” icon will blink on the display when the Reverse Tone Squelch system
is activated.
2
)
You may notice a “
DCS DCS
DCS DCS DCS ” indication on the display while you rotate the DIAL
knob still more. We’ll discuss the Digital Code Squelch system shortly.
4. When you have made your selection of the CTCSS tone mode, press the PTT switch
to save the new setting.
5. Press the [ F/W
] key, then press the
[
2
(
CODE
)] key to enable adjustment of
the CTCSS frequency.
6. Rotate the DIAL knob until the display
indicates the Tone Frequency you need
to be using (ask the
repeater owner/op-
erator if you don’t
know the tone frequency).
CTCSS/DCS O
PERATION
CTCSS TONE FREQUENCY
(
Hz
)
67.0 69.3 71.9 74.4 77.0 79.7
82.5 85.4 88.5 91.5 94.8 97.4
100.0 103.5 107.2
110.9 114.8 118.8
123.0 127.3 131.8 136.5 141.3 146.2
151.4 156.7 159.8 162.2 165.5 167.9
171.3 173.8 177.3 179.9 183.5 186.2
189.9 192.8 196.6 199.5 203.5 206.5
210.7 218.1 225.7 229.1 233.6 241.8
250.3 254.1
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