Question about Raymarine St40 Depth Display E22038

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Searay transducer position.

I would like to know if the searay company make a special part of the hull for a transducer and where it usually is. M boat is a 24 ft searay but the year I do not know.

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5 Suggested Answers

hydetech
  • 113 Answers

SOURCE: Replacement of an old Impulse QT206

I believe it is the same model. Even if it is different, it will probably work if it has the same type of plug.

Posted on Jul 24, 2008

  • 1 Answer

SOURCE: A65 Transducer

jmiller,

Sound like your getting turbulence from the hull or your angle is allowing cavitation under the transducer. Look under the hull where the traducer is mounted and look for a part that has no obstruction including saltwater pickups, hull relieves, etc. The other thing to check is to take a strait edge on the bottom of the transducer to ensure the angle is slightly forward than the hull.

Bob

Posted on Dec 27, 2008

  • 1 Answer

SOURCE: Need the best way to mount transducer to hull

www.sternmate.com

Posted on Apr 19, 2009

  • 1 Answer

SOURCE: Marine Faria depth finder, with thru the hull transducer.

I'm having the exact same problem. I spoke with the service manager at Faria (Ted) and he was thinking that as long as the gauge is showing a reading, it should default to reading the depth. I'll probably send the guage in to FARIA - they'll repair it for $55. You bring up a good point - maybe the transducer is bad? I put a call in to the Tedmeister to see what he thinks. I'll post if he sheds any light.

Posted on Aug 18, 2009

  • 64 Answers

SOURCE: My marine speed transducer needs to be replaced.

Yes. You need to make sure you get the same transducer though. With you system being that old, you may have a transducer that is old where there is not a direct replacement. You need to make sure you get the correct transducer. You may need to get a "flapper" kit to update your housing to the new style.

Posted on Jun 24, 2010

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1 Answer

Where do I place transducers on my boat?


That will depend on what transducers you are using. For different types of transducers you will get mounting brackets. These are usually available from the supplier of the marine transducer.
For example in-hull or tansom mounts.


http://www.lowrance.cn/en/Support/Tips-and-Tutorials/Transducer-Guide/

Sep 04, 2014 | Boating

1 Answer

Installing transducer


I assume you're talking about a transom mount transducer. Best if the leading edge of the transducer is even/level with the hull and tilts slightly down in the back or trailing edge of the transducer. Also try to eliminate a gap between the leading edge of the transducer and the hull.

Mar 25, 2014 | Hummingbird Boating

1 Answer

I was told that the Uniden QT-206HP depth sounder will not work thru an alunium hull is this true or false


Hi!

The transducer for your depth gauge will not work through an aluminum hull. A drilled through-hull transducer or a transom mount transducer are your options here.

Just in case you require it, your Owners Manual can be viewed/downloaded at:
http://ca.binnacle.com/pdf/Uniden-QT206-manual.pdf

Hope this helps..

Jun 20, 2011 | Uniden Qt206hp Digital Depth Gauge With...

1 Answer

Re: transducer installation should the transducer on a Elite 5 be in line with the bottom of an aluminimum hull or the bottom of the ribs running along the hull thanks


try and mount the transducer at the lowest point on the hull and on the flatest part,, with the direction arrow facing forward.

c...

Jan 04, 2011 | Sport & Outdoor - Others

1 Answer

Does this transducer mount in the floor of the boat,or on the bottom of the hull?


Hi!

This transducer requires a hole to be drilled in the bottom of the hull and the unit installed from the outside, using a caulk/adhesive such as 3M 4200 or 5200. Nice choice. Furuno is a good manufacturer!

Hope this helps!

Dec 24, 2010 | Furuno 520 5psd Plastic Thru Hull...

1 Answer

My problem is I bought a 600l furuno and it came w/a thru-hull transducer and I wanted a transom mounted trans.I all ready bought a tr/mount and I need to sell the thru/hull.It's the 2" w/speed and temp...


i will exchange this for you, free shipping no charge, just ship it to me to inspect and i will send you the transom ducer no charge, if you have a bronze thru hull with speed and temp to trade for a plastic transom mount with speed and temp, let me know

Jul 29, 2009 | Furuno 520 5psd Plastic Thru Hull...

1 Answer

A65 Transducer


jmiller,

Sound like your getting turbulence from the hull or your angle is allowing cavitation under the transducer. Look under the hull where the traducer is mounted and look for a part that has no obstruction including saltwater pickups, hull relieves, etc. The other thing to check is to take a strait edge on the bottom of the transducer to ensure the angle is slightly forward than the hull.

Bob

Sep 11, 2008 | Raymarine A65 Combo GPS...

2 Answers

Depth finder problem


The problem is not so much the flat bottom, although they are prone to this problem. The way the sonic waves have to travel through the water is affected by turbulence, especially by air bubbles and cavitation, and by the transducer actually leaving the water, which happens frequently on flat bottomed boats. The best solution to this is to have the unit mounted through the hull so it is completely flush with the hull surface - often they are mounted with a surface flange on the outside of the hull which although thin still causes cavitation around the transducer at higher speeds. about 14 knots will usually interfere with the accuracy of the readings on most hull shapes - forward looking sonars perform usually better. Another thing to check is that the transducer is actually seating right in the housing, if it is not flush with the flange then you have problems - even half a millimetre is too much. check no muppet has painted the transducer with antifouling paint - that never helps, also check if there is a build up of marine growth on or near the transducer - a smooth hull will always keep your depth working until a higher boat speed. if the transducer is growing stuff itself then gently scrape it off - be really careful not to scratch the surface. There are now available non-sonic depth sounders, especially ulf radio signal devices, but I have heard no good reports about them, last i saw they were very expensive and maybe they experience other problems at high speed. there also have been towed devices available that may suit your needs better, although probably a lot of trouble in shallow waters. If you can borrow a waterproof video camera, you could mount it behind (not too close) the transducer, this would be a pain to do, but it may give you an insight into what part of the hull if any is causing the problem (tie the camera to the top of the boat securely in case the mount fails) Hope this helps, sorry but your dealer is not totally wrong :)

Sep 25, 2006 | Lowrance M68C GPS Receiver

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