Transducer Location?

[stratos195]

I mounted my transducer on the transom of my 195 Pro XL and it doesnt get an accurate reading past 20 mph. Is there a place that I can mount my transucer in order to get an accurate reading at high speeds?

[ep72]

Get a thru hull ducer and mount it in the bilge area.

[fishnfool38]

+1

[stratos195]

Are those hard to install? Dont they involve some cutting of the hull?

[ep72]

Nope, just epoxy it to a flat spot in the bilge area.

[aussiebasser]

My transducer is just sitting in the bilge of my 285. Been there for 4 years and never had a problem with it picking up at speed. You need a little bit of water in there, but that's all. Mine iw one of the earlier humminbirds with a flat base on it though.

[JeffA]

why does there need to be water in there?
i want to move mine in there.

[aussiebasser]

If it's not epoxied to the floor, the tx won't shoot through air. A bit of water does the trick.

[JeffA]

i see, you dont leave the water in there....its just to test it before you glue it in right..

[JR19]

On occasion I will have trouble with my flasher not wanting to read at wide open throttle. Mainly if the boat has sit for a long time in between trips. My transducer is in the far back at the lowest section of the hull. I can add about 1 quart of water into the bilge and the transducer will read 100% of the time...I don't know exactly what the water does but it will make my transducer read much better


Lee...since you mounted your transducer on the outside of the hull I would guess that you are getting air bubbles/turbulence when the boat is moving. With an external transducer you get that problem alot. They are sensitive as to where you place them and that is why I prefer a thru hull transducer.

[aussiebasser]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JeffA &raquo;</TD></TR><TR><TD CLASS="quote">i see, you dont leave the water in there....its just to test it before you glue it in right.. </TD></TR></TABLE>
Nope, I've never epoxied mine in place. Just let it sit in a bit of bilge water and it's fine. There's normally a bit in there from launching anyway.

[Ohirolina]

Lee/Jeff,
It is easy to do. Just clean and lightly sand the area where you want to mount the transducer. I took a paper cup and cut the bottom 3/4" off of it. I then cut out the bottom of it. I placed it where I wanted to install the transducer. (Make sure the drain plug will still have room to twist in. Don't Ask ) I bought one of those 5 minute curing time, small double syringe, 2 part epoxy from Lowes. I squirted it into the cup dam, mixed it very well, and then placed the transducer into the mixture. I held it there until it set up. I would not try it with the 1 or 2 minute epoxy. Try not to "Whip" the epoxy when stirring. Keep the air bubbles to a minimum. Some guys have even installed them with just silicone caulking.

[JeffA]

thanks for the info.

[BassOrBlast]

All good advice here---as to Stratos195's specific question, a 'true' Thru-Hill transducer does involve cutting a hole thru the hull and is ususally seen in larger BIG/Saltwater hulls---what we speak of is 'Shoot-thru-Hull' transducers that involve positioning the 'ducer w/ epoxy in the bilge over an area devoid of excess airspace---directions/ suggestions above will get 'er done!

[stratos195]

I appreciate the info. Guess I am going to buy me a new transducer then so that I can get a reading while I am running. Pretty aggrevating when it doesnt read. Thanks!

[Musky Mike]

The directions for mounting the transducer are in the manual for your fish finder. It's best not to use quick drying epoxy...use regular slow drying epoxy and make sure there are no air bubbles in it. The transducer has to sit flat on the hull with no air gaps. If there are any bubble or air gaps the transducer won't work as well because it can't send the sound waves through air very well. After you install the transducer, if you have to add water to get it to work...you have an void (air pocket) between the transducer and the hull. This is the Hummingbird guide...which ever fish finder you have the transducer install is the same.

http://www.humminbird.com/pdf/...l.pdf

[JR19]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stratos195 &raquo;</TD></TR><TR><TD CLASS="quote">I appreciate the info. Guess I am going to buy me a new transducer then so that I can get a reading while I am running. Pretty aggravating when it doesn't read. Thanks! </TD></TR></TABLE>

I have seen a transom mount transducer mounted inside the bilge just like a shoot thru hull and it worked fine...It may have just been luck but it did work. 90% of the work on mounting a shoot thru hull transducer is preparation. Good clean area,form a dam and do not get air bubbles in the epoxy when mixing

[DavidWebb]

I used a flapper wheel to sand the inside of mine, it did an excellent job. did it quickly too. I got my shoot thru on ebay. I also tried the transom mount ducer. quit reading before i even planed out.