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14
4
BASIC OPERATION
4
■
Squelch level setting
The squelch circuit mutes the received audio signal depend-
ing on the signal strength. The transceiver has 9 squelch lev-
els, a continuously open setting and an automatic squelch
setting.
➥
While pushing and holding
[SQL] (
ATT
•
SET
)
, 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 3 operating modes: FM,
AM and WFM modes. The mode selection is stored indepen-
dently in each band and memory channels.
Typically, AM mode is used for the AM broadcast stations
(0.495–1.620 MHz) and air band (118–135.995 MHz), and
WFM is used for FM broadcast stations (76–107.9 MHz).
WFM mode cannot be selected below 30 MHz bands for all
versions (and above 850 MHz bands for USA version).
➥
While pushing and holding
[FUNC]
, push
[CALL]
(
MODE
•
SCAN
)
several times to select the desired operating
mode.
SCAN
S.MW
ATT
DTCS
T SQL
W
FM
AM -DUP
LOW
VOL PRIO P SKIP MR
5
1
9
ATT
DTCS
T SQL
WFM
AM
-DUP
LOW
VOL PRIO P SKIP MR
5
1
9
ATT
DTCS
T SQL
W
FM
AM -DUP
LOW
VOL PRIO P SKIP MR
5
1
9
FM mode
AM mode
WFM mode
SCAN
SET
SCAN
S.MW
SET
ATT
DTCS
T SQL
WFMAM -DUP
LOW
VOL PRIO P SKIP MR
5
1
9
ATT
DTCS
T SQL
WFMAM -DUP
LOW
VOL PRIO P SKIP MR
5
1
9
[DIAL]
Automatic squelch
Maximum level
SET
Push
Push and hold
Dual operation