New2001
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5
BASIC OPERATION
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■
Setting squelch level
The squelch circuit mutes the received audio signal depend-
ing on the signal strength. The receiver has 9 squelch levels,
a continuously open setting and an automatic squelch set-
ting.
➥
While pushing and holding
[SQL]
, rotate
[DIAL]
to select
the squelch level.
• “ LEVEL 1” is loose squelch (for weak signals) and “LEVEL 9” is
tight squelch (for strong signals).
• “ AUTO” indicates automatic level adjustment by a noise pulse
counting system.
• “OPEN” indicates continuously open setting.
■
Operating mode selection
Operating modes are determined by the modulation of the
radio signals. The transceiver has total 5 operating modes (A
band: FM, WFM and AM modes, B band FM, FM-N, AM and
DV modes). The mode selection is stored independently for
each band and memory channel.
Typically, AM mode is used for the AM broadcast stations
(0.495–1.620 MHz) and air band (118–136.995 MHz), and
WFM is used for FM broadcast stations (76–107.9 MHz).
WFM mode cannot be selected above 810 MHz for
U.S.A. version.
➥
Push and hold
[MODE](REC)
for 1 sec. several times to
select the desired operating mode.
• While pushing and holding [MODE](REC) , rotate
[DIAL]
is
also available to select operating mode .
[DIAL]
[SQL]
A
MemoName
MemoName
µ
PRIO
PRIO WX
WX EMR
EMR
DTCS
DTCS
FM
FM
LOW
LOW
ATT
ATT
14
145 000
000
PSKIP
PSKIP
+DUP
+DUP
25
25
000
000
SQUELCH:LEVEL9
SQUELCH:LEVEL9
µ
000
000
PSKIP
PSKIP
SQUELCH:AUTO
SQUELCH:AUTO
µ
000
000
PSKIP
PSKIP
Automatic squelch
Maximum level
A
FM
FM
14
145 000
000
25
25
A
WFM
WFM
14
145 000
000
25
25
A
AM
AM
14
145 000
000
25
25
PSKIP
PSKIP
PSKIP
PSKIP
PSKIP
PSKIP
WFM mode
FM mode
AM mode
• Display example
REC
MODE
Содержание IC-92AD
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