1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
39
CONTINUOUS TONE CODED SQUELCH SYSTEM (CTCSS)
You may sometimes want to hear calls from only specific
persons. The Continuous Tone Coded Squelch System
(CTCSS) allows you to ignore (not hear) unwanted calls
from other persons who are using the same frequency.
First select the same CTCSS tone as selected by the
other persons in your group. A CTCSS tone is
subaudible and is selectable from among the 38
standard tone frequencies.
Note: CTCSS does not cause your conversation to be private. It only
relieves you from listening to unwanted conversations.

SELECTING A CTCSS FREQUENCY

1Press [A/B] to select band A or B.
If necessary, press [F], [A/B] to recall the sub-band.
2Press [F], [4] to select “F–4 (CTCSS FREQ)”.
3Press [UP]/ [DWN] to select the appropriate CTCSS
frequency.
The selectable frequencies are the same as for the tone
frequency. See the table given in “Selecting a Tone
Frequency” {page 22}.
4Press [OK] to complete the setting.
CTCSS frequency:
82.5 Hz
CTCSS frequency:
82.5 Hz
Received
Not
received
Not
received
CTCSS frequency:
100.0 Hz
CTCSS: OFF
TH-D7 E 39 CTCSS 98.12.4, 0:12 PM39