Furuno CSH8L Brochure

FULL-CIRCLE COLOR

SCANNING SONAR

Full-circle scanning sonar detects and
instantaneously displays fish schools
and underwater conditions

Vivid 16-color display assists in rec­ognition of bottom structure, and
concentration and distribution of fish
schools

Various fishing and navigation data*
keep operator abreast of fishing and
navigation conditions

*appropriate sensors required

Four user-programmable function
keys for quick set up according to
fishing conditions or specific func­tion

High power transmitter ensures
reliable operation under any condi­tions

Transducer frequency : 85 kHz

Control unit with
optional monitor
MU-150HD

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A compact, high frequency sonar with revolutionary

discrimination between bottom fish and seabed

The FURUNO CSH-8L is a full-circle scanning sonar that

both midwater trawlers and purse seiners.
rapidly detects and displays individual sh, sh schools and
changing underwater conditions. Fish distribution and
seabed conditions in 360 degrees around your vessel are
shown in 16 colors.

The CSH-8L is provided in a BlackBox conguration for a

space saving and exible installation. It consists of a compact

hull unit, transceiver unit and processor unit. A variety of

monitors are available considering the installation space and
The CSH-8L is an 85 kHz high frequency sonar, which makes
it ideal for searching near the vessel or in shallow water
because the beam width is narrow and target denition is
greatly improved. Fish and bottom echoes are clearly sepa­rated and bait sh are more easily seen. Automatic tilt scan-

necessary size for operation. FURUNO’s MU-display series

monitors are specially designed to meet the requirement from

marine professionals around the world. For a remote station,

a second display and remote control can be simply plugged

into the processor unit.
ning is a standard feature, making the CSH-8L suitable for

What is a Scanning Sonar?

The transducer of a scanning sonar consists of many elements to transmit the echo in all directions simultaneously without
rotating the transducer. The echo is redrawn on the display instantaneously according to the latest feedback from the
transducer. Thus a sonar that can scan quickly will greatly improve the shing operation especially for searching/following
the fast swimming sh.

Fish school

Fish echo

Detection image of scanning sonar

Extremely Quick Scanning Speed

0.54 sec./scan

The CSH-8L completes 0.54 second/scan while the conventional
PPI sonar*
range/conditions*2. About 60 times more information are provided

1

takes 32 seconds to train full circle under the same

than PPI sonar. Fast scanning lessens the chance of missing a
small change in the current situation. This is especially helpful
when range and tilt require frequent adjustment while shing, offer­ing no frustration on redrawing time.

*1 CH-250 PPI sonar, training at 6° steps.

2

Based on 400 m range in combination display mode.

*

No Blind Area

Detection image of scanning sonar

Scanning Sonar shows the actual situation 360 degrees around the
vessel, and will give all the necessary information as needed. No more
blind areas to consider, allowing the operator to concentrate on the tilt,
range, shing area, etc.

Fish echo displayed on CSH-8L

Detection image of conventional PPI sonar

Blind Area