8
68
SCANS
2001 NEW
■ Scan types
■ Preparation
• Channels
For programmed scan:
Program scan edge frequencies into scan edge mem-
ory channels P1 and P2.
For
∂∂
F scan:
Set the ∂F span (∂F scan range) in the scan screen.
For memory scan:
Program 2 or more memory channels except scan
edge memory channels.
For select memory scan:
Designate 2 or more memory channels as select mem-
ory channels. To designate the channel as a select
memory channel, choose a memory channel, then
push [F3 SEL] in the scan screen, or push [F5 SEL]
in the memory name screen.
• Scan resume ON/OFF
You can select the scan to resume or cancel when de-
tecting a signal, in set mode. Scan resume ON/OFF
must be set before operating a scan. See p. 70 for
ON/OFF setting and scan resume condition details.
• Scan speed
Scan speed can be selected from 2 levels, high or low,
in set mode. See p. 69 for details.
• Squelch condition
PROGRAMMED SCAN
Repeatedly scans between two scan edge frequencies
(scan edge memory channels P1 and P2).
This scan operates in VFO mode.
SELECT MEMORY SCAN
Repeatedly scans all selected memory channels.
∂F SCAN
Repeatedly scans within ∂F span area.
This scan operates in memory mode.This scan operates in memory mode.
This scan operates in both VFO and memory modes.
Scan
Scan edge
P1 or P2
Scan edge
P2 or P1
Jump
Mch 1 Mch 5
Mch 2 Mch 3 Mch 4
Mch 6Mch 7Mch 99
MEMORY SCAN
Repeatedly scans all programmed memory channels.
Mch 1 Mch 5
Mch 2 Mch 3 Mch 4
Mch 6Mch 7Mch 99
SEL
SELSEL
SEL
SEL
SEL
SELSEL
SEL
SEL
ScanScan
–
∂F frequency +∂F frequency
Start frequency
Jump
SQUELCH
CLOSED
SQUELCH
OPEN
Scan stops when detecting a signal.
If you set scan resume ON in scan set
mode, the scan pauses for 10 sec. when
detecting a signal, then resumes. When a
signal disappears while scan is paused,
scan resumes 2 sec. later.
The scan continues
until it is stopped
manually, and does
not pause even if it
detects signals.
Scan pauses on
each channel when
the scan resume is
ON; not applicable
when OFF.
SCAN
PROGRAMMED
STARTS
SCAN
MEMORY SCAN
WITH
IC-7400.qxd 02.4.2 11:35 Page 68
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