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Icom IC-M25 Manual

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Adjusting the squelch level
Squelch is a function that allows the audio to be heard only
while receiving a signal that is stronger than a set level. You
can adjust the squelch threshold level.
A higher level blocks weak signals, so you receive only
stronger signals. A lower level allows you to hear weak
signals including noise.
Adjust the squelch level when you want to:
•blockweaksignalsincludingnoise➜ Set the level higher.
•hearweaksignals,eveninthenoise➜ Set the level lower.
You can adjust the squelch level while the “SQL” icon is blinking.
q
Push [VOL/SQL] twice.
•The“SQL” icon starts blinking.
•Ifnokeyoperationisperformedfor5seconds,thetransceiver
returns to the normal operating mode.
w
Push [Y] or [Z]
to adjust the squelch level.
•Thelevelisdisplayedonthescreen.
Push e
[VOL/SQL]
once.
•Returnstothenormaloperatingmode.
Monitor function
The Monitor function momentary cancels the squelch
function. You can check for weak signals.
➥ Hold down
[MONI] (VOL/SQL) for 1 second
.
•“ ” blinks.
•Ifthereisaweaksignal,youcanhearthesignalandnoise.
•Release[MONI] (VOL/SQL) to turn OFF this function.
NOTE: Thisfunctionhasoptions.Seepage19formore.
Toggling the transmit power
If you receive no response to your call, your transmitted
signal might not reached the person you called. Choose high
power for longer distance communications.
On the other hand, transmitting at low power is enough to
communicate, according to the distance. Choose low power
for short range communication and battery conservation.
➥
Push [Hi/Lo] to toggle the transmit power between low and high.
•“LOW” is displayed when low power is selected. No indication is
displayed when high power is selected.
NOTE:
•Somechannelsarerestrictedtolowpower.
•YoucannottransmitonChannel70.
11
4
BASICOPERATION
1
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3
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5
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15
16
Squelch level.
While blinking, adjust the squelch.
Blinks while the function is activated.
Hold down
… 19 …


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