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Tow Fish:
The tow fish is constructed of high impact PVC. The fish is 62" long and 4 1/2" in dia. The fish weighs 35 lbs.
The nose cone is lead impregnated epoxy for negative ballast. The tail cone is epoxy without lead. The fins are
PVC and are glued and screwed in-place (field replaceable ). There are slots on each side of the fish for the
transducers. The front area of the fish contains a removable waterproof compartment which houses the
electronics for the transducers. The cable from the surface connects to the top of the tow arm. The cable is
connected to the side of the tow-arm and enters the fish and connects to the waterproof compartment.
The function of the fish is to carry the transducers and the underwater electronics through the water. It is critical,
for good printouts, that the fish tows stable through the water (stable, not perfectly straight). If the fish is towed
cross-current (across a river) the fish will actually tow pointed slightly upstream. This is due to the water-flow
pushing against the fins. This will not cause a problem with the printout. The printout is effected when the fish
is not stable while under tow.
Pre-Amp
Left Transducer Windows
600Khz
100Khz
INTRODUCTION
Fishers basic Side Scan PC system consists of :
• Tow fish with two 100Khz, 1 deg by 40 deg transducers (if SSS-100K).
• Tow fish with two 600Khz, 1 deg by 40 deg transducers (if SSS-600K)
• Tow fish with two 100Khz and two 600Khz, 1 deg by 40 deg transducers (if SSS-100K/600K)
• 150 ft to 500 ft tow cable.
• Sonar Processor.
• Laptop or optional Ultra Bright Splashproof Computer.
JW FISHERS SIDE SCAN SONAR
Fish
Sonar
Processor
150 to 500’
Cable
Interface
Board
Laptop
Содержание SSS-100K PC
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