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8
SCANS
2001 NEW 2001 NEW
Voice squelch control function
This function is useful when you dont want unmodu-
lated signals pausing or cancelling a scan. When the
voice squelch control function is activated, the receiver
checks received signals for voice components.
If a receiver signal includes voice components, and the
tone of the voice components changes within 1 sec.,
scan pauses (or stops). If the received signal includes
no voice components or the tone of the voice compo-
nents does not change within 1 sec., scan resumes.
While M2 is selected with [MENU], push [F5 VSC]
to switch the VSC (Voice Squelch Control) function
ON and OFF.
•“VSC appears when the function is activated.
The VSC function activates for any scan.
The VSC function resumes the scan on unmodu-
lated signals, regardless of whether the scan re-
sume condition is set to ON or OFF.
Scan set mode
When the squelch is open, scan continues until it is
stopped manually it does not pause on detected sig-
nals. When squelch is closed, scan stops when de-
tecting a signal, then resumes according to the scan
resume condition. Scan speed and the scan resume
condition can be set using the scan set mode.
q Push[MENU] to select M2.
w Push [F1 SCN] to select scan menu.
e Push [F5 SET] to select scan set mode.
r Push [F1 ] or [F2 ] to select SCAN Speed
item.
t Rotate the tuning dial to select scan speed from
high and low.
•“HIGH : scan is faster
•“LOW : scan is slower
y Push [F2 ] to select SCAN Resume item.
u Rotate the tuning dial to select scan resume func-
tion from ON and OFF.
•“ON : when detecting a signal, scan pauses for
10 sec., then resumes. When a signal disap-
pears, scan resumes 2 sec. later.
•“OFF : when detecting a signal, cancels scanning.
i Push [MENU] to return to scan menu.
F 1
F
2F
3
F
4
F
5
F 1
F 2 F 3 F 4 F 5
F 1
F
2F
3
F
4
F
5
F 1
F
2F
3
F
4
F
5
SCN
MEM
SWR
TCN
VSC
PRO
F
FIN
SPN
SET
F:±1Ok
Push [F1]
Push [F5]
SCAN
Speed
HIGH
1
Push [F1] or [F2]
SCAN
Resume
ON
2
F 1
F 2 F 3 F 4 F 5
SCN
MEM
SWR
TCN
VSC
Push [F5] to turn the VSC function ON and OFF.
VSC indicator
IC-7400.qxd 02.4.2 11:35 Page 69
82


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