![background image](http://html1.mh-extra.com/html/icom/ic-t90a/ic-t90a_instruction-manual_2038092027.webp)
■
Setting the squelch level
22
4
BASIC OPERATION
The squelch circuit mutes the received
audio signal depending on the signal
strength. The transceiver has 9 squelch
levels, a continuously open setting and
an automatic squelch setting.
D
Setting the squelch level
q
While pushing and holding [SQL], ro-
tate [DIAL] one-click to display the
current squelch level.
w
Rotate [DIAL] successively to adjust
the squelch level.
• “LEVEL1” is loose squelch and
“LEVEL9” is tight squelch.
• “AUTO” indicates automatic level adjust-
ment with a noise pulse count system.
e
Release [SQL] to return to the previ-
ous indication.
[Squelch level indication]
D
Monitor function
This function is used to listen to weak
signals or to open the tone squelch
manually.
➥
Push and hold [SQL] to monitor the
operating frequency.
The [SQL] switch can be set as a
monitor ON/OFF switch in set mode.
(p. 60)
[SQL]
Blinks while monitoring.
FM
SKIP
P
r
r
BASIC OPERA
TION
[SQL]
[DIAL]
Indication
Squelch level
Open
Automatic (default)
Level 1 (loose)
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
Level 8
Level 9 (tight)
IC-T90A_IM.qxd 02.6.6 08:44 AM Page 25 (1,1)
Summary of Contents for IC-T90A
Page 96: ...Blank page...
Page 99: ......
Page 100: ...on us 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan EX apan m Inc...