Thru Hull Transducer location?

Ed · #1 10-01-2003, 11:40 AM

Strick-

I have a Garmin 188c GPS with Sounder and a Furuno FCV-600L on my boat. The Garmin was a transom mount and never really worked right, except when at rest. THe Furuno is a shoot through the hull bilge mount and works all the way up to WOT at 45mph.

I just exchanged the Garmin 'ducer for a shoot thru the hull puck and will be installing it shortly.

If I were you...I would get the the shoot thru the hull type 'ducer. When installed correctly, they work great.

The problem with transom mounts is.....a lot of interference from air bubbles from the engine, hull wash, and trim tabs. By the time you figured out the best position....you would have drilled about 5 sets of holes in your transom.

ocuyler · #2 10-01-2003, 12:39 PM

I just installed an Airmar P66 with temp and speed on the transom. It works terrific. The only signal loss is on hard turns, like MOB drills. The template was a big help in getting the unit vertical and at the right relationship to the hull.

gss036 · #3 10-02-2003, 01:33 AM

Otto, I have the same set up on my 23WA and it works great, BUT!, I have had to replace it twice,the side brackets break, I think due to junk coming in under the hull. We have a lot of that here is the islands, especially during and after the gill net seasons, they seem to gather up everything in their nets and it gets released in mass, especially ell grass. Then we get a lot of wood when the rivers rise and wash into the saltchuck.

FELLOW-SHIP · #4 10-01-2003, 05:07 PM

This discussion took place in July and had a different response to it, you might want to read this thread.
http://www.classicseacraft.com/cgi-b...c;f=1;t=000611
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ocuyler · #5 10-01-2003, 05:09 PM

Gary,

We don't have too much debris here. BUT, I will admit that the plastic bracket is a little flimsy. I'm going to re-install it with s/s washers and 4200 behind it against the hull to firm it up.

Anyway, still works great. The speed was off on the Garmin 160 Blue, but it has a calibrate (w/ GPS) feature that works good. The units reads the bottom well up to the 45 MPH top speed.

ocuyler · #6 10-01-2003, 05:16 PM

Additional comments:

The hull shown is a 2003 Boston Whaler Outrage.

I mounted on the Port side because of the swim ladder. The location shown was the ONLY place that didn't interfere with the tiedown strap or the bunk. Dumb luck, I guess.

You guys havn't discussed the temp probe that is ineffective when shooting thru-the-hull.

[ October 01, 2003, 04:17 PM: Message edited by: Otto Cuyler ]

FELLOW-SHIP · #7 10-02-2003, 09:36 AM

“A General Observation”
I have been thinking about the ducer thing and thought I would put this general comment into the mix.
Over the last 25 years we have seen a ongoing improvement in our fish finding equipment I know for myself I must have installed at least 8 to 10 different fish finders on my boats each one was better than the one before it. I now use the Furuno 600 and love it. This unit, if it was possible to buy it 20 yrs ago would have cost probably $15,000 or more. The point I want to make is that although the fish finder has greatly improved for the most part we as “small boaters” have stuck with little poor quality transducers and not kept up with these new and powerful fish finders need of a top quality ducer to do the job correctly. If we are going to use great fish finders then why use crappy ducers for that equipment. Kind of like buying I brand new high speed computer and only having 4 megs of memory in it. The transducer is a very important part of the overall success of your depth finding if you are going to use a cheep ducer then just buy a cheep depth finder but if you are buying a $750- $1,500 unit then don’t blow it with a junk ducer. Remember the Hupple Telescope.
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