Icom i2725E, Instruction Manual, Page: 70 / 96

53
10
POCKET BEEP AND TONE SQUELCH
New2001
■
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. 51 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.
z
Set the operating frequency.
x
Program the CTCSS tone frequency or DTCS
code in set mode.
• See p. 52 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.
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