Setting Squelch Level; Monitor Function - Icom ID-31A Instruction Manual

■ Setting squelch level

The squelch function mutes the noise or received audio sig-
nal, depending on the signal strength and the squelch control
setting to cut off the noise output.
While holding down [SQL], rotate [DIAL] to select the
➥
squelch level.
• While holding down [SQL], rotate [DIAL] one click to display the
squelch level.
• "LEVEL1" is loose squelch (for weak signals) and "LEVEL9" is
tight squelch (for strong signals).
• "AUTO" indicates automatic level adjustment by a noise pulse
counting system.
• "OPEN" indicates a continuously open setting. (This option is not
selectable in the DV mode.)
[DIAL]
[SQL]

■ Monitor function

This function is used to listen to weak signals without disturb-
ing the squelch setting, or having to open the squelch manu-
ally even when mute functions such as the tone squelch are
in use.
Hold down [SQL] to monitor the operating frequency.
➥
• The 1st segment of the S-meter blinks.
Automatic squelch
The [SQL] key can be set to 'sticky' operation in FUNC-
TION menu.
MENU ➪ FUNCTION ➪ Monitor (p. 44)
Maximum level
BASIC OPERATION
[SQL]
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The first segment blinks
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