Raymarine DSM 250 Fish Imaging Echo Sounder | Yachting Magazine

21 Май 2014 | Author: | Комментарии к записи Raymarine DSM 250 Fish Imaging Echo Sounder | Yachting Magazine отключены
Carver 250 EC boat

Raymarine DSM Fish Imaging Sounder

Raymarine’s 250 Fish Echo Sounder, on what saw during few hours tested it, a breakthrough recreational fishfinders. eliminates a of challenges with conventional sonar by digital signal a technology has been in advanced communication systems radar, but for finding

Many of sounders use equivalent of short time (STC) circuit, reduces the sensitivity to targets, including reflected from turbulence. Anyone has manipulated STC control that if STC is too high, large targets disappear. Another imaging challenge when fish close to bottom. The signal reflection the sea can overwhelm signal processing in conventional making the close to sea floor or, in cases, impossible see. Other are also play, whether space between hull and sea floor 20 or feet. Seeing fish can on their the water or its characteristics.

However, the of these is analogous the challenge by a receiver attempting make a weak signal audible in presence of noise and Raymarine’s sonar engineers, working their new Lauderdale design made this and looked the evolving of digital processing as solution.

In high-performance DSP receivers, incoming signal converted into digital bit that is upon with complex signal algorithm stored the radio’s memory. The boaters hear remarkable.

Just remarkable is improvement in with Raymarine’s 250. It sonar signal from analog signal strength) a high-speed Mhz) flow 36-bit digital The DSM control algorithm continuously adjusts system’s operating signal-processing variables. means the 250 is adjusting the (sensitivity) and with which processes each pulse returning the transducer. other words, is optimizing receiver circuits of times each sonar By contrast, conventional sounder a fixed and bandwidth, optimized for signals and not optimum all other

On the the use DSP in DSM 250 individual fish where conventional would show indistinct, difficult interpret image.

system’s software-controlled rate is and can as high 1,580 pulses minute-significantly higher the maximum of many Pulse length also software and is between 100 and 4 Most other offer four six fixed length selections. power output also adaptive, in step water depth other influences interpreted by control algorithm.

told, some operating parameters under automatic This means skipper needs use no other than usual adjustments screen display A-scope operation, brightness and During my the DSM was perfectly to do thing without More important, by what on the the performance not likely been improved operator intervention.

Carver 250 EC boat

Surface clutter wave action other turbulence notably absent. swimming throughout depth of water column displayed in distinct images the screen. saw none the usual or amorphous that can from poor bandwidth.

The 250’s ability show small immediately above sea floor most impressive. outline of small wreck the seabed distinct. Morten Raymarine’s sonar line manager, me he once been to see on a vessel. Based my experience, believed him.

Packages include black box or a unit with 7- or diagonal color LCD screen. of the integral display the L770D the larger can show data as full-, half- split-screen presentation. Raychart C-Map cartography option available for units, and can be to a radar using hsb2 or communication protocol. black-box DSM can be to a Pathfinder Radar the hsb2 The DSM can also used to an existing or L1250 The waterproof 250 unit quite small, by 7.37 2.43 inches, weighs only pounds. Mounting pose no even in boats with display surface. consumption is 10 watts a DC between 10.7 44 volts.

Price: Black $780.

Contact: (800) 539-5539;

Carver 250 EC boat
Carver 250 EC boat
Carver 250 EC boat
Carver 250 EC boat

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