Tone Squelch Operation - Icom ID-52A Advanced Manual

15
OTHER FUNCTIONS

Tone squelch operation

The tone squelch opens only when you receive a
signal that includes a matching subaudible tone in the
FM or FM narrow (FM-N) mode� You can silently wait
for calls from other stations using the same tone�
Also, the reversed tone squelch function mutes
the squelch when a signal including a matching
subaudible tone�
Step 1. Setting the tone squelch frequency
[MENU] > SET > DUP/TONE��� > TSQL Freq
1� Push [VFO/MHz] to enter the VFO mode�
2� Push [MODE] to select the FM or FM-N mode�
3� Rotate [DIAL] to set an operating frequency�
4� Push [MENU]�
5� Select "DUP/TONE���" in the "SET" menu�
6� Select "TSQL Freq�"
7� Rotate [DIAL] to set a Tone Squelch frequency,
then push [ENT]�
L Set to between 67�0 and 254�1 Hz�
L To exit the MENU screen, push [MENU]�
Step 2. Using the tone squelch
1� Push [QUICK]�
2� Select "TONE�"
3� Select the Tone Squelch type�
4� Operate normally�
• You will only hear the audio of stations that are using
the same Tone Squelch frequency� All other signals
will be muted�
About the Tone squelch types indication
• TSQL: Enables the Tone Squelch function�
• TSQL-R: Enables the Reverse Tone Squelch function�
• TONE(T)/DTCS(R)
("T-DTCS" is displayed, "T" blinks�):
When you transmit, the selected subaudible
tone is superimposed on your normal signal�
When you receive, the DTCS squelch opens
only for a signal that includes a matching
DTCS code and polarity� (Audio is heard)
• DTCS(T)/TSQL(R)
("D-TSQL" is displayed, "D" blinks�):
When you transmit, the selected DTCS code
is superimposed on your normal signal�
When you receive, the tone squelch opens
only for a signal that includes a matching tone
frequency� (Audio is heard)
• TONE(T)/TSQL(R)
("T-TSQL" is displayed, "T" blinks�):
When you transmit, the selected subaudible
tone is superimposed on your normal signal�
When you receive, the tone squelch opens
only for a signal that includes a matching tone
frequency� (Audio is heard)
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