I Tone/Dtcs Squelch Operation - Icom IC-2720H Instruction Manual

I 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.
q Set the operating frequency in the main band.
w Program the CTCSS tone frequency or DTCS code in set
mode.
• See p. 52 for programming details.
e Push [TONE•DTMF] several times until "T SQL" or "DTCS"
appears in the function display.
r When a signal with the matched tone is received, the
squelch opens and the signal can be heard.
• When the received signal includes an unmatched tone, the
squelch does not open. However, the S/RF indicator shows the
received signal strength.
• To open the squelch manually, push [DUP•MONI].
t Operate the transceiver in the normal way (push [PTT] to
transmit; release [PTT] to receive).
y To cancel the tone squelch, push [TONE•DTMF] several
times until "T SQL" or "DTCS" disappears.
POCKET BEEP AND TONE SQUELCH
z Set the operating frequency.
TSQL
x Program the CTCSS tone frequency or DTCS
code in set mode.
• See p. 53 for programming details.
DTCS
c Push [FUNC] then [
to turn the tone squelch or DTCS squelch ON.
v When a signal with the matched tone is re-
ceived, the squelch opens and the signal can be
heard.
• When the received signal includes an unmatched
tone, the squelch does not open. However, the S/RF
indicator shows the received signal strength.
• To open the squelch manually, push [
b Operate the transceiver in the normal way (push
[PTT] to transmit; release [PTT] to receive.
n To cancel the tone squelch, push [FUNC] then
[ C(T-OFF)].
ENT
• "T SQL" or "DTCS" disappears
NOTE: The DTCS squelch operation on sub band will not
be performed during DTCS transmission, due to the same
encoder/decoder circuit is used for both main and sub
bands. And the tone squelch operation on sub band may
not be performed correctly during DTCS transmission.
10
9(TSQL)] or [ 4(DTCS)]
SIMP HIGH
1(BANK)].
MONI
10
54