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Using the Tone Squelch Function
Tips
• The squelch type can be set for each frequency band on both A-band (Main) and B-band (Sub).
• The CTCSS and DCS squelch settings are also active during scanning. If scanning is performed with
the CTCSS and DCS squelch function activated, scanning stops only when a signal containing the
specified CTCSS tone or DCS code is received.
• Pressing the Monitor switch allows signals that do not contain a tone or DCS code, and signals with
different tones or DCS codes to all be heard.
• Pressing and holding the
key for over one second to change the Set mode option allows you
to use this function more conveniently.
[SIGNALING]
[3 DCS INVERSION]
: Allows you to receiving the DCS code of the inverted phase.
[SIGNALING]
[10 SQL EXPANSION]
: Allows specifying squelch types for transmit and receive
respectively.
Display
Operation
OFF
Deactivates transmit/ receive tone squelch function, etc.
TONE
Activates CTCSS transmit tones ([TN] appears).
TONE SQL
Activates the tone squelch receive function ([TSQ] appears).
DCS
Activates the digital code squelch ([DCS] appears).
REV TONE
Activates the reverse tone ([RTN] appears).
Use to monitor communications based on the squelch control system in which
a tone signal is contained when communication is not performed and the tone
signal disappears when communication starts.
PR FREQ
Activates the no-communication squelch function for radios ([PR] appears).
You can specify no-communication signal tone frequencies within the range from
300 Hz to 3000 Hz in steps of 100 Hz.
PAGER (
see page
116)
Activates a new pager function ([PAG] appears).
When communicating via transceivers with your friends, specify personal codes
(each code is composed of two tones) so that you can call only specific stations.
D CD*
Sends a DCS code only for transmission ([DC] appears).
TONE-DCS*
Sends a tone signal when transmitting, and waits for a DCS code when receiving
([T-D] appears).
D CD-TONE SQL*
Sends a DCS code when transmitting, and waits for a tone signal when receiving
([D-T] appears).
*: Press and hold the
key for over one second, then set
[SIGNALING]
[10 SQL EXPANSION]
to
ON. The setting options for D CD, TONE-DCS and D CD TONE SQL are added to the
[SIGNALING]
[11
SQL TYPE]
in Set mode. This allows specifying the squelch types for transmit and receive respectively.
Setting the Tone Frequency
The tone frequency can be selected from 50 frequencies (from 67.0 Hz to 254.1 Hz).
1
Press and hold the
key for over one second.
The transceiver enters Set mode.
2
Touch
[SIGNALING]
.
3
Rotate the dial, then touch
[12 TONE SQL FREQ]
.
