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Transducer holder/protection for the new Revolution 13 http://www.hobie.com/forums/viewtopic.php?f=26&t=51295 |
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Author: | Jcanracer [ Thu May 15, 2014 9:36 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
That is some useful info, thanks for sharing! |
Author: | pmmpete [ Thu May 15, 2014 3:30 pm ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
I've been very satisfied with the transducer pocket in the bottom of my Revolution. It completely protects my transducer, and my fish finder works very well. However, I hadn't thought about the possibility that sand or mud could build up on the black cover for the transducer pocket and reduce the effectiveness of the transducer. Now that I've seen your pictures, each time that I get off the water I'm going to throw some water into the transducer pocket in order to wash out any sand or mud. It seems like an easier solution would have been to cut a hole in the original cover, rather than making a new cover. A possible disadvantage of your new cover is that it puts a thick piece of aluminum right in front of the transducer, which may reduce the effectiveness of the transducer. |
Author: | ronbo613 [ Thu May 15, 2014 7:05 pm ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
pmmpete wrote: A possible disadvantage of your new cover is that it puts a thick piece of aluminum right in front of the transducer, which may reduce the effectiveness of the transducer. Shouldn't reduce the effectiveness any more than if the transducer was attached to an 18' aluminum boat. The transducer, if it's working correctly, transmits sound pulses downward and receives the upward reflected pulse, the transmitter/receiver is pointed down. The only possible issue I can think of is that the open space at the front and under the transducer may have a flow of water through them that may create bubbles that would interfere with the transducer pulses. With transducers mounted on the stern of a boat, which is not an uncommon place to mount them, sometimes the bubbles from the boat's propeller can cause poor readings. Since you've tried it and don't have any problems, no reason to worry about it. |
Author: | Nicola [ Thu May 15, 2014 9:30 pm ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
ronbo613 wrote: pmmpete wrote: A possible disadvantage of your new cover is that it puts a thick piece of aluminum right in front of the transducer, which may reduce the effectiveness of the transducer. Shouldn't reduce the effectiveness any more than if the transducer was attached to an 18' aluminum boat. The transducer, if it's working correctly, transmits sound pulses downward and receives the upward reflected pulse, the transmitter/receiver is pointed down. The only possible issue I can think of is that the open space at the front and under the transducer may have a flow of water through them that may create bubbles that would interfere with the transducer pulses. With transducers mounted on the stern of a boat, which is not an uncommon place to mount them, sometimes the bubbles from the boat's propeller can cause poor readings. Since you've tried it and don't have any problems, no reason to worry about it. Perfect !!! In fact, one of the air bubbles was my only question that apparently there ....... also why we do not go to high speeds like a boat. However, if I have problems you will be the first to know! |
Author: | JohnT2240 [ Wed May 21, 2014 2:56 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
Man that a great idea to fix a problem .You would think that once you was in the water it wash the sand out . You should patent it Ha Ha . Thanks for sharing |
Author: | Dr.SteelheadCatcher [ Mon Oct 27, 2014 7:54 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
Elegant and simple solutions...nice work! |
Author: | uno mas [ Sun Nov 16, 2014 6:48 pm ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
awesome work there DIY guys. and i don't want to burst anyone bubble, if you believe in your heart that sand affects the transducer signals, please don't read any further. but, the facts of physics are different. ultrasound travels very well thru solids, liquids and gels. i wrote procedures to utilize ultrasound to inspect feet-thick steel products, searching for flaws the size of a speck of fly poop. the facts of physics are that this sand, the plastic plate and any other debris or material will have no discernible affect on a fish finder. in fact, the elements of your transducer are encased in epoxy and in that plastic housing. please don't cut the housing apart to get to the crystals inside. lol. the only evil thing would be air--ultrasound cannot pass through air. not even a micron of it. and by that i mean a layer of air. a few bubbles--even a couple dozen pin head size bubbles, are not that big a deal. the speed of your screen is about 1/1000'th of your transducer screen. typically any errors caused by bubbles would be corrected far before you'd see them on the screen. another fact of physics is a phenomenon called the Fresnel zone, or 'dead zone'. without going into detail, the first basically 12" below the transducer are a dead area, and anything in that area cannot be seen nor will it really affect the transducer, within reason. guys with million dollar billfish boats quite often mount their transducers shooting through 6" of calusa fiber, or glass or kevlar and they have no issues. cheers drew |
Author: | felvic [ Mon Nov 17, 2014 12:19 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
uno mas wrote: ultrasound travels very well thru solids, liquids and gels.... the facts of physics are that this sand, the plastic plate and any other debris or material will have no discernible affect on a fish finder. I'm sorry Drew but you're wrong about sand. Try to paste a transducer with silicon and bring back here the sonar view... |
Author: | Nicola [ Mon Nov 17, 2014 3:59 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
Personally I do not know exactly what happens with the sand and probably account for a minor but when in doubt I prefer it that way otherwise it is as if I had stuck inside. Certainly you can mount transducers that are not Lowrance. Thanks for the explanation !! Nicola |
Author: | uno mas [ Mon Nov 17, 2014 7:14 pm ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
i'll just say this, i have a masters degree in mechanical engineering, hold 2 US patents dealing with ultrasound and worked with ultrasound in the nuclear power industry for over a decade. i will humbly say with a lil bit of authority, sand in the pocket of your Hobie Lowrance Ready transducer pocket, will have no affect on the signal of a $99 fish finder, or a $12,000 sonar. as long as there is water in there with the sand, it won't ever in your lifetime matter. cheers drew |
Author: | deleonjo [ Fri Dec 12, 2014 1:39 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
Was having issues with sand as well. Here was my solution: |
Author: | Nicola [ Wed Dec 17, 2014 6:08 am ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
This is probably the simplest solution and economic. Nicola |
Author: | mmiller [ Tue Mar 31, 2015 4:44 pm ] |
Post subject: | Re: Transducer holder/protection for the new Revolution 13 |
Updated advice on Lowrance Ready cover plates concerning sand. We also believe that sand has little to no effect on the signal, but it is easily avoided without modifying the plate. The big issue is if sand or mud are allowed to dry and harden in the cavity during storage between sessions. The next time you go out this material may not easily flush out on it's own. To prevent an issue... Simply flush the cavity with water from a hose or bucket by directing the flow down the scupper hole after fishing. It will easily clear when wet. Simply maintenance. If you are concerned about sand that may have entered the plate area during a launch and not cleared, the natural surge of water in and out of the area should clear it as you move through the water. If you aren't sure... pour some water down the scupper. |
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