Icom IC-2300H - 3 BASIC OPERATION: Squelch Settings; Audio Mute, Squelch Attenuator, S-meter Squelch

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9
■ Audio mute function
This function temporarily mutes the audio without dis-
turbing the volume setting.
➥ Push [FUNC] then [MUTE] to mute the au-
dio.
• The “MUTE” icon appears.
• Push [CLR] to cancel the function.
■ Squelch attenuator
The transceiver has an RF attenuator related to the
squelch level setting. Approximately 20 dB of attenua-
tion is obtained at the maximum setting.
Turn ON the Squelch Attenuator function:
q Push [ ] to turn OFF the power.
w While holding down [LOCK] (SET), hold down [ ] for
1 second to turn ON the power and enter the Initial
Set mode.
e Push [SET] or [MONI] several times, to select the
“SQL” item.
r Rotate [DIAL] to select “AT” (Attenuator).
t Push [ ] to exit the Initial Set mode.
y Rotate [SQL] clockwise further than the 12 o’clock
position, to activate the squelch attenuator.
• The attenuation level can be adjusted up to 20 dB
(approximately), between the 12 o’clock and fully
clockwise positions.
• When setting the squelch from the microphone, the
level greater than ‘17’ activates the squelch attenuator.
NOTE: When using with the Monitor function.
The squelch attenuator functions even when the
Monitor function is in use. It is recommended to set
[SQL] between 10 and 12 o’clock (7 to 17 level when
it is set using the HM-133V).
■ S-meter squelch
The transceiver has an S-meter squelch. The S-meter
squelch allows you to set minimum signal level needed
to open the squelch.
Turn ON the S-meter Squelch function:
q Push [ ] to turn OFF the power.
w While holding down [LOCK] (SET), hold down [ ] for
1 second to turn ON the power and enter the Initial
Set mode.
e Push [SET] or [MONI] several times, to select the
“SQL” item.
r Rotate [DIAL] to select “SS” (S-meter squelch).
t Push [ ] to exit the Initial Set mode.
y Rotate [SQL] clockwise further than the 12 o’clock
position, to activate the S-meter squelch.
LOCK
S E T
ANM
MONI
DUP
LOW
T
-
SCAN
TONE
PRIO
M/CALL
SCAN
V/MHz
DIGITAL
PRIO
AO
MUTE
NAR
MID
LOW
Squelch attenuator
LOCK
S E T
ANM
MONI
DUP
LOW
T
-
SCAN
TONE
PRIO
M/CALL
SCAN
V/MHz
ATT
AO
NAR
MID
LOW
While the squelch attenuator is turned ON.
([DIAL] is set between the 12 o’clock and fully clockwise positions.)
Appears
LOCK
S E T
ANM
MONI
DUP
LOW
T
-
SCAN
TONE
PRIO
M/CALL
SCAN
V/MHz
S SQL
NAR
MID
LOW
While the S-meter squelch is turned ON.
([DIAL] is set between the 12 o’clock and fully clockwise positions.)
Appears
LOCK
S E T
ANM
MONI
DUP
LOW
T
-
SCAN
TONE
PRIO
M/CALL
SCAN
V/MHz
DIGITAL
PRIO
AO
BUSY
MUTE
NAR
MID
LOW
Appears
Mute
Push then .
LOCK
S E T
ANM
MONI
DUP
LOW
T
-
SCAN
TONE
PRIO
M/CALL
SCAN
V/MHz
DIGITAL
PRIO
AO
MUTE
NAR
MID
LOW
S-meter squelch
3
BASIC OPERATION
Using the HM-133V