Icom IC-2720H [71/96] I tone dtcs squelch operation

Icom IC-2720H [71/96] I tone dtcs squelch operation
54
10
POCKET BEEP AND TONE SQUELCH
New2001
10
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 [TONEDTMF] 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 [DUPMONI].
t Operate the transceiver in the normal way (push [PTT] to
transmit; release [PTT] to receive).
y To cancel the tone squelch, push [TONEDTMF] several
times until T SQL or DTCS disappears.
z Set the operating frequency.
x Program the CTCSS tone frequency or DTCS
code in set mode.
See p. 53 for programming details.
c
Push [FUNC] then [
SIMP
9(TSQL)] or [
HIGH
4(DTCS)]
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 [
MONI
1(BANK)].
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
[
ENT
C(T-OFF)].
•“T SQL or DTCS disappears
TSQL
DTCS
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.
IC-2720H_2.qxd 03.5.13 9:45 Page 54 (1,1)

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