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7 ENHANCED COMMUNICATIONS
FM CTCSS OPERATION
You may sometimes want to hear calls only from
specific persons. When using FM mode, the
Continuous Tone Coded Squelch System (CTCSS)
allows you to ignore (not hear) unwanted calls from
other persons who are using the same frequency.
A CTCSS tone is sub-audible and is selectable from
among the 42 tone frequencies. Select the same
CTCSS tone as the other stations in your group. You
will not hear calls from stations other than those using
the same CTCSS tone.
Note:
CTCSS does not cause your conversation to be private. It
only relieves you from listening to unwanted conversations.
1 Press [A/B / M/V] to select VFO A or VFO B.
•“tA” or “tB” appears to show which VFO is
selected.
2 Select the 29 MHz band or the 51-54 MHz band
using [ ] or [ ].
3 Select the desired frequency with the Tuning
control or MULTI control.
4 Press [MODE] to select FM mode {page 19}.
5 Turn the SQL control to adjust the squelch.
6 Press [NB/T/ 7] until “CT” appears.
7 While “CT” is visible, press [NB/T/ 7] (1 s).
• The current CTCSS frequency appears.
The default CTCSS frequency is 88.5 Hz.
8 Turn the MULTI control to select the appropriate
CTCSS frequency.
• The selectable CTCSS frequencies are listed in
the following table.
9 Press [MTR/ CLR] to complete the setting.
.oN
.qerF
)zH(
.oN
.qerF
)zH(
.oN
.qerF
)zH(
.oN
.qerF
)zH(
000.76114.79223.141335.602
103.96210.001322.641437.012
209.17315.301424.151531.812
304.47412.701527.651637.522
400.77519.011622.261731.922
507.97618.411729.761836.332
605.28718.811828.371938.142
704.58810.321929.971043.052
805.88913.721032.681141.452
905.19028.131138.291
018.49125.631235.302
You will hear calls only when the selected tone is
received. To answer the call, press and hold Mic
[PTT], then speak into the microphone.
Skip steps 7 and 8 if you have already programmed
the appropriate CTCSS frequency.
Note:
◆
When using split-frequency operation, select FM mode on both
VFOs to use CTCSS.
◆
You can select a CTCSS frequency independent of a tone
frequency.
◆
You cannot use the CTCSS function with the Tone function.
CTCSS FREQ. ID SCAN
This function scans through all CTCSS frequencies to
identify the incoming CTCSS frequency on a received
signal. You may find this useful when you cannot
recall the CTCSS frequency that the other persons in
your group are using.
1 While the CTCSS function is ON, press [NB/T/ 7]
(1 s).
• The current CTCSS frequency appears.
2 Press [SCAN/ SG.SEL] to activate the CTCSS
frequency ID scan.
• While the transceiver is receiving a signal, “CT”
blinks and every CTCSS frequency is scanned.
When the CTCSS frequency is identified, the
transceiver stops scanning and the identified
frequency is displayed.
• Press [SCAN/ SG.SEL] again to resume
scanning.
• Press [SCAN/ SG.SEL] to stop scanning while
the CTCSS frequency ID scan is active.
Note:
Received signals are audible while scanning is in progress.