Icom IC-2820H, Instruction Manual

Page: 107 / 164

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11
TONE SQUELCH AND POCKET BEEP
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Tone/DTCS squelch beep operation
q
Set the desired operating frequency and the desired oper-
ating mode.
w
Set the desired CTCSS tone or DTCS code.
e
Push [TONE•DTMF] several times to select the desired
squelch system
• “T SQL ”: Tone squelch with pocket beep; “DTCS ”: DTCS
squelch with pocket beep; “T SQL”: Tone squelch; “DTCS”:
DTCS squelch
r
When a signal with the correct tone or code is received, the
transceiver’s mute is released and received audio sounds.
• Emits beep tones for 30 sec. and blinks “ ” if pocket beep is se-
lected in step
e
.
t
Push [PTT] to answer or push [MAIN•BAND] to stop the
beeps and blinking.
z
Set the operating frequency.
x
Push [FUNC] then push one of following keys
to turn the desired squelch system ON.
• [
HIGH
4(DTCS)] : DTCS squelch
• [
MID
5(DTCS S )] : DTCS squelch with pocket
beep
• [
DUP
+ 8(TSQL S )] : Tone squelch with pocket
beep
• [
SIMP
9(TSQL)] : Tone squelch
c
When a signal with the correct tone or code is
received, the transceiver’s mute is released
and received audio sound.
• Emits beep tones for 30 sec. and blinks “ ” if
pocket beep is selected in step
e
.
v
Push [PTT] to answer or push [
CLR
A(MW)] to
stop the beeps and blinking.
• “ ” disappears and cancels the pocket beep func-
tion automatically.
b
To cancel the tone squelch or DTCS squelch
function, push [FUNC] then [
ENT
C(T-OFF)].
• “TSQL” or “DTCS” disappears
TSQL S
DTCS S
Pocket beep DTCS beep
NOTE:
• The DTCS squelch operation on sub band does not func-
tion during DTCS transmission because the same en-
coder/decoder circuit is being used for both main and sub
bands. Tone squelch operation on sub band may not be
performed correctly during DTCS transmission.
• The tone/DTCS code squelch opens sometimes when
other stations communicate using an adjacent tone fre-
quency or in a DTCS code.
• The tone/DTCS code squelch can be operated on FM or
FM-N mode only.