Adjusting The Squelch Level; Monitor Function; Toggling The Transmit Power - Icom IC-M25 Instruction Manual

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.
While blinking, adjust the squelch.
Squelch level.
w Push [Y] or [Z] to adjust the squelch level.
• The level is displayed on the screen.
[VOL/SQL] once.
Push
e
• 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.
Blinks while the function is activated.
Hold down
This function has options. See page 19 for more.
NOTE:

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.
BASIC OPERATION
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