I spent several seasons repairing my ws150 transducer and then having it quit again a couple months into the season. Between that and the issues of cleaning the fouled depth transducer, and sometimes flakey depth readings, I finally replaced the wind, speed and depth with a package from Raymarine. The only thing I did "off the script" was to have Defender substitute the housing for the depth with one that made it removable for cleaning just like the speed transducer. Boy do I wish I had done this a few years earlier! I think the whole package was around $1400. Not the newest top of the line, but everything is rock solid. 3 dedicated displays that are easier to read for these old eyes, as well.

Bill Bina


On 4/7/2017 8:58 PM, John and Maryann Read via CnC-List wrote:

Asking for some collective wisdom to repair or replace the masthead transducer of my Standard Horizon WS 150 unit. Wind speed is fine, but direction read outs are erratic. Very certain the issue is the masthead transducer (5 pin). Suspect the magnet pickups are failing

Has been out of production for > 10 years. Design was picked up by Navman and Navico but now discontinued. Got a Navman 3100 masthead unit brand new that supposedly was a comparable item but does not work for close hauled. Magnet orientation is quite different. If anyone has a NAVMAN system this unit is available.

Hate to have to replace the unit due to effort involved and have matching units for depth and speed that work just fine. No luck on flea bay or consignment shops for a direct replacement.

One suggestion was to try one the new Airmar WX series transducers for NMEA 2000

Any thoughts??

John and Maryann

Legacy III

1982 C&C 34

Noank, CT



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