Icom ID-51A PLUS Instruction Manual - Page 48

■Setting the squelch level, ■Monitor function

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4 BASIC OPERATION ■■Setting the squelch level qqWhile holding down [SQL], rotate [DIAL] one click to display the current squelch level. wwWhile holding down [SQL], rotate [DIAL] to select the squelch level. • "LEVEL1" is loose squelch (for weak signals) and "LEVEL9" is tight squelch (for strong signals). • "AUTO" shows automatic level adjustment by a noise pulse counting system. • "OPEN" shows a continuously open setting. (This option is not selectable in the DV mode.) ■■Monitor function This function is used to listen to weak signals without disturbing the squelch setting, or having to open the squelch manually, even when mute functions such as the tone squelch are in use. ➥➥While holding down [SQL], the transceiver monitors the operating frequency. • The 1st segment of the S-meter blinks. • T his function is disabled in the DV mode. The [SQL] key can be set to 'sticky' operation in Function menu. MENU > Function > Monitor (p. 26) Automatic squelch Maximum level NOTE: The independent squelch level can be set to the A band and B band. The squelch level setting can be done only for the MAIN band. 35 The first segment blinks.

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35
4
BASIC OPERATION
■
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.
While holding down [SQL], the transceiver monitors the
➥
operating frequency.
• The 1st segment of the S-meter blinks.
• This function is disabled in the DV mode.
The [SQL] key can be set to ‘sticky’ operation in Function
menu.
MENU > Function >
Monitor
(p. 26)
The first segment blinks.
■
Setting the squelch level
While holding down [SQL], rotate [DIAL] one click to dis
-
q
play the current squelch level.
While holding down [SQL], rotate [DIAL] to select the
w
squelch level.
• “LEVEL1” is loose squelch (for weak signals) and “LEVEL9” is
tight squelch (for strong signals).
• “AUTO” shows automatic level adjustment by a noise pulse
counting system.
• “OPEN” shows a continuously open setting. (This option is not
selectable in the DV mode.)
Automatic squelch
Maximum level
NOTE:
The independent squelch level can be set to the A
band and B band.
The squelch level setting can be done only for the MAIN
band.