Yaesu FT-2980R, Руководство по эксплуатации

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EPCS (Enhanced Paging & Code Squelch) Operation
The
FT-2980R
includes an Enhanced CTCSS tone encoder/decoder and a dedicated
microprocessor providing paging and selective calling features. This allows you to place
a call to a specific station (Paging), and to receive calls of your choice directed only to
you (Code Squelch).
The paging and code squelch systems use two pairs of (alternately switched) CTCSS
tones which are stored in the pager memories. Basically, your receiver remains silent
until it receives the CTCSS tone pair that matches those stored in the Receiving Pager
Memory. The squelch then opens so the caller is heard, and the paging ringer immediately
sounds, if activated. When you close the
PTT
switch to transmit, the CTCSS tone pair
which is stored in the Transmitting Pager Memory will be transmitted automatically.
On the paged radio, the squelch will close automatically after the incoming page ends.
Storing the CTCSS Tone Pairs for EPCS Operation
1. Press and hold in the [ MHz
(
SET
)] key for one second to enter the Set mode.
2. Rotate the DIAL knob to select “
34 PAG.CDR
” for the
Receiving CTCSS Tone Pair or “
35 PAG.CDT
” for the
Transmitting CTCSS Tone Pair.
3. Press the [ MHz
(
SET
)] key momentarily to enable ad-
justment of this Set Mode Item.
4. Rotate the DIAL knob to set the CTCSS Tone number
which corresponds to the first tone of the CTCSS Tone
Pair.
5. Press the [ REV
(
DW
)] or [
LOW
(
A/N
)] key, then rotate the
DIAL knob to set the CTCSS Tone number which corre-
sponds to the second tone of the CTCSS Tone Pair.
6. Press and hold in the [ MHz
(
SET
)] key for one second to
lock in that tone/code and exit to normal operation.
The FT-2980R does not recognize the order of the
1st tone and the 2nd tone. In other words, for ex-
ample, the FT-2980R considers both CTCSS pairs “10, 35” and “35, 10” to be iden-
tical.
CTCSS Tone Number
No. Hz No. Hz No. Hz No. Hz No. Hz
01 67.0 11 94.8 21 131.8 31 171.3 41 203.5
02 69.3 12 97.4 22 136.5 32 173.8 42 206.5
03 71.9 13 100.0 23 141.3 33 177.3 43 210.7
04 74.4 14 103.5 24 146.2 34 179.9 44 218.1
05 77.0 15 107.2 25 151.4 35 183.5 45 225.7
06 79.7 16 110.9 26 156.7 36 186.2 46 229.1
07 82.5 17 114.8 27 159.8 37 189.9 47 233.6
08 85.4 18 118.8 28 162.2 38 192.8 48 241.8
09 88.5 19 123.0 29 165.5 39 196.6 49 250.3
10 91.5 20 127.3 30 167.9 40 199.5 50 254.1
25
CTCSS/DCS/EPCS Operation
FT-2980R Operating Manual