Main

Item

Setting

Description

Normal

Range

Setting

 

 

 

Item

 

 

 

 

 

Main

Sub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NL

0–10

Rejects unwanted echoes.

3

 

 

 

 

 

 

 

 

 

 

Automatically reduces receiver

 

 

 

AGC

0–10

gain against strong echoes such

0

 

SIGNAL

as seabed. Adjust so fish echo is

 

 

 

 

 

PROCESS

 

 

displayed near seabed.

 

 

 

 

 

 

 

 

 

 

 

Suppresses seabed echoes. If

 

 

 

2AGC*

0–4

AGC alone cannot suppress

0

 

 

 

 

seabed echoes, use 2AGC.

 

 

 

 

 

 

 

SIGNAL

 

 

 

Selects echo level versus presen-

 

 

CURVE

1–4

tation color curve. The higher

2

 

 

 

 

the setting, the easier it is to see

 

 

 

 

 

 

 

 

 

weak echoes on the screen.

 

 

 

 

 

 

 

 

SIGNAL

 

 

Rejects random noise and inter-

 

 

IR

0–3

ference by other echo sounders

0

 

PROCESS

 

 

 

or sonars.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Adjusts echo afterglow, which is

 

 

 

AFGLOW

0–4

useful for watching echo move-

0

 

 

ment. The higher the setting the

 

 

 

 

 

 

 

 

 

longer the afterglow remains.

 

 

 

 

 

 

 

 

 

 

 

Sets depth range of echo

 

 

 

RANGE

16

sounder picture. Sets range of

160 m

 

 

(DN RNG)

Pos.

net recorder downward

 

 

 

 

ES1

 

 

sounding.

 

 

(Net

 

 

 

 

 

GAIN

0–10

Adjusts receive sensitivity.

5

 

Recorder)

 

 

 

 

 

 

 

SHIFT

0–

Sets display start depth of echo

 

 

 

sounder picture. Sets range of

0 m

ES

 

(UP RNG)

1000 m

 

net recorder upward sounding.

 

 

 

 

 

 

 

 

 

 

 

 

 

NL

0–10

Rejects blue dots (caused by

0

 

 

dirty water) on entire screen.

 

 

 

 

 

 

ES1

 

 

 

 

 

COLOR

0–9

Eliminates echoes displayed in

0

 

(Net

 

colors specified.

 

Recorder)

 

 

 

 

 

 

 

 

 

 

IR

ON,

Eliminates interference by other

OFF

 

 

OFF

sonars or echo sounders.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Each pressing erases oldest mark

 

 

DELETE

 

 

among event mark , event

 

 

 

 

 

 

MARK

 

 

mark , fish mark, own ship

 

 

 

 

+ or -

mark.

 

 

 

 

 

 

DELETE MK

 

 

key to

 

 

 

 

 

erase.

Each pressing deletes 1/5 of

 

 

DELETE

TRACK

 

 

 

overall length.

 

 

MARK

 

 

 

 

 

 

 

 

 

 

 

 

FISH

 

Fish Track is deleted.

 

 

 

 

 

 

 

*2AGC and HOR functions cannot be used together. If one is used the other is automatically set to “0”.

(Continued on next page)

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Page 16
Image 16
Furuno CSH-83 Agc, Signal, Process, 2AGC, Curve, Afglow, Range, Dn Rng, Gain, Shift, Up Rng, ES1 Color, Off, Delete