I Scan Types; I Preparation - Icom IC-7800 Instruction Manual

9
SCANS

I Scan types

PROGRAMMED SCAN
Repeatedly scans between two scan edge frequencies
(scan edge memory channels P1 and P2).
Scan edge
P1 or P2
This scan operates in VFO mode.
MEMORY SCAN
Repeatedly scans all programmed memory channels.
Mch 2
#2
*"#1," "#2" and "#3" show that the channel
Mch 1
#1
is specified as the select memory.
Mch 99
#1
This scan operates in memory mode.

I Preparation

• Channels
For programmed scan:
Program scan edge frequencies into scan edge mem-
ory channels P1 and P2.
∂ F scan:
For
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 [F-3•SELECT] in the scan screen (memory
mode) or in the memory list 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. 9-3 for
ON/OFF setting and scan resume condition details.
Scan edge
P2 or P1
Scan
Jump
Blank channel
Mch 3
Mch 4
#1
Mch 5
#1
Mch 7 Mch 6
#1 #3
• The scan function can be used on the main read-
out only.
• You can operate a scan while operating on a fre-
quency using the dualwatch or split functions.
∂F SCAN
Repeatedly scans within ∂F span area.
∂F frequency
–
Scan
This scan operates in both VFO and memory modes.
SELECT MEMORY SCAN
Repeatedly scans all or one of 3 select memory channels.
Mch 2
#2
*"#1," "#2" and "#3" show that the channel
Mch 1
#1
is specified as the select memory.
Mch 99
#1
This scan operates in memory mode.
• Scan speed
Scan speed can be selected from 2 levels, high or low,
in scan set mode. See p. 9-3 for details.
• Squelch condition
SCAN
PROGRAMMED
STARTS
WITH
The scan continues
until it is stopped
SQUELCH
manually, and does
OPEN
not pause even if it
detects signals.
Scan stops when detecting a signal.
If you set scan resume ON in set mode, the
SQUELCH
scan pauses for 10 sec. when detecting a
CLOSED
signal, then resumes. When a signal disap-
pears while scan is paused, scan resumes
2 sec. later.
9-2
Start frequency
+∂F frequency
Scan
Jump
Blank channel
Mch 3
Mch 4
#1
Mch 7 Mch 6
#1 #3
MEMORY SCAN
SCAN
Scan pauses
each channel when
the scan resume is
ON; not applicable
when OFF.
Mch 5
#1
on