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Main
Item
SIGNAL
PROCESS
SIGNAL
SIGNAL
PROCESS
ES1
(Net
Recorder)
ES
ES1
(Net
Recorder)
DELETE
MARK
DELETE MK
DELETE
MARK
*2AGC and HOR functions cannot be used together. If one is used the other is
automatically set to "0".
(Continued on next page)
1-6
Item
Main
Sub
NL
AGC
2AGC*
CURVE
IR
AFGLOW
RANGE
(DN RNG)
GAIN
SHIFT
(UP RNG)
NL
COLOR
IR
TRACK
Setting
Description
Range
0–10
Rejects unwanted echoes.
Automatically reduces receiver
gain against strong echoes such
0–10
as seabed. Adjust so fish echo is
displayed near seabed.
Suppresses seabed echoes. If
0–4
AGC alone cannot suppress
seabed echoes, use 2AGC.
Selects echo level versus presen-
tation color curve. The higher
1–4
the setting, the easier it is to see
weak echoes on the screen.
Rejects random noise and inter-
0–3
ference by other echo sounders
or sonars.
Adjusts echo afterglow, which is
useful for watching echo move-
0–4
ment. The higher the setting the
longer the afterglow remains.
Sets depth range of echo
16
sounder picture. Sets range of
Pos.
net recorder downward
sounding.
0–10
Adjusts receive sensitivity.
Sets display start depth of echo
0–
sounder picture. Sets range of
1000 m
net recorder upward sounding.
Rejects blue dots (caused by
0–10
dirty water) on entire screen.
Eliminates echoes displayed in
0–9
colors specified.
ON,
Eliminates interference by other
OFF
sonars or echo sounders.
Each pressing erases oldest mark
among event mark 1, event mark
2, fish mark, own ship mark.
+ or -
key to
erase.
Each pressing deletes 1/5 of
overall length.
Normal
Setting
3
0
0
2
0
0
160 m
5
0 m
0
0
OFF
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