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Wesmar HD850 Series Sonar - Precision Searchlight Sonar with Electronic
Stabilization
The HD850 is the combination of new technology and quality engineering,
featuring a number of important new elements.
Active Stabilization- The stabilization gyro is in the soundome, so
when the transducer scans, the gyro scans with it. Corrections are made in the
exact direction the transducer is looking, keeping the sound beam on target. The
Wesmar gyro runs 100% of the time. Other units have the sensor mounted to the
bulkhead, delaying response time.
Digital Link- Long, interconnect cable runs are always subject to
noise and low sonar performance. Wesmar's new digital link between the sonar
electronics (near the transducer) and the computer console in the wheelhouse
operate noise free for maximum sonar performance.
Searchlight Advantage- No Sonar ha better directivity than Wesmar
engineered transducers. One hundred percent of the transducer surface area
points in the direction of the fish in a sharp and narrow beam. Dispersed fish
and hard to mark fish are detected clutter-free. An Omni sonar, with a diffused
beam, allows dispersed fish and fish near the bottom to go undetected.
Split Screen Mode- Scan forward and then across the bottom. This is
ideal for mid-water and bottom trawling. Head for the fish out in front and
watch as they pass to either side of the vessel. Sounders only mark under the
vessel and not to the sides, missing the target.
Top part forward scan, lower part profile, each have separate adjustments.
Stabilized Down Sounder- When the seas get rough, the best of sounders
lose track of the bottom. The HD850 in the down sounder mode, with active
stabilization on, will keep the sound beam where it should be: straight down.
Lower the hoist below the bubble layer for a ground picture unmatched by other
sounders. Fishing in the ice? Raise the transducer inside the sea chest, and the
Wesmar keeps running.
Linear Scan Mode- Ideal for finding and tracking fish close to the
bottom. Linear scan mode presents a forward view of the bottom not available on
other sonar's. With this comes better differentiation between the bottom and
fish close to the bottom. In linear sonar presentation the sweep starts at the
left and moves to the right. Range is measured vertically, bearing along the
horizontal. When scanning for ground fish, the bottom will mark horizontally
across the screen and not a half circle.
Specifications-
Frequency- 110 khz
Hoist Height- 58.3 inches
Minimum Seachest- 39.37 inches
Retraction Time- 5 seconds
Soundbeam- 4.2 Degrees V, 5.2 Degrees H
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