Tone/Dtcs Squelch Operation - Icom IC-R1500 Instruction Manual

8
POCKET BEEP AND TONE SQUELCH

■ Tone/DTCS squelch operation

The tone or DTCS squelch opens only when receiving a sig-
nal with the same pre-programmed subaudible tone or DTCS
code, respectively. You can silently wait for the specified sig-
nal using the same tone.
q Set the operating frequency in FM mode.
w Program the CTCSS tone frequency or DTCS code in set
mode. ((p. 31))
e Push and hold [MONI•T/T-SCAN] for 1 sec. to enter
tone squelch selection mode, then rotate [DIAL] until " "
or " " appears in the function display.
Tone squelch setting
33
Tone OFF setting
DTCS setting
r When a signal with the matched tone is received, the
squelch opens and the receiver emits audio.
• When the received signal includes an unmatched tone, the
squelch does not open. However, the S-meter indicator shows
the received signal strength.
• To open the squelch manually, push [MONI•T/T-SCAN].
t To cancel the tone squelch or DTCS squelch function, re-
peat steps e until "oFF" appears, then push any switch.
D Reverse action for tone or DTCS squelch
➥ Enter tone squelch selection mode as described in steps
q to e as shown left, then rotate [DIAL] to select either
reverse action for the tone or DTCS squelch as below.
for Tone squelch
How does the Reverse action work?
When the reverse action is selected for either the tone
squelch, "tSqL-r," or DTCS squelch, "dtCS-r," and a signal
with the matched tone (or DTCS) is received, the squelch
closes, and the receiver mutes the signal. You can listen in
the signals any other than the specified one, if it's with tone.
for DTCS