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BassnChris

Best Place For These Transducers

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Where is the best location for these two transducers? The manual says they SHOULD be less than 1 foot of one another.

The first pic is where I think I will put them unless I get feedback that indicates otherwise. (I know they are not exactly where they need to be....just showing generally where they will be)

The other pics are just images of the transom area I want to mount them.

1st

image_zpsa3c3ec37.jpg

2nd

image_zpsbf05196a.jpg

3rd

fix_zpsb45c7e03.jpg

4th

image_zps0cfcd962.jpg

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That round one in your hand is a 2D SHOOT-THRU model. That goes INSIDE your hull and is epoxied to the location you determine AFTER you test for the best location.

It can be used on the trolling motor via a hose clamp.

 

You have a high performance, stepped transom, bass boat, that needs a shoot-thru for on-plane depth readings.

 

A transom mount 2D transducer by Lowrance/Eagle is torpedo shaped and comes with a transom bracket.

 

You can attach the LSS transducer above the hull bottom since imaging is a idle speed function.

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Wayne, I think the 2D transducer in the photo is a transom mount.  You can see the mounting bracket in front of it.  It looks exactly like the Lowrance 'ducer mounted on the transom of my aluminum boat.  Further, do you agree that, provided that the transom-mount 'ducer is mounted in a low turbulence area of the hull, that on-plane depth readings will be obtained?  My boat will travel at up to 60 mph and I have never had a problem with depth readings.

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Wayne, I think the 2D transducer in the photo is a transom mount.  You can see the mounting bracket in front of it.  It looks exactly like the Lowrance 'ducer mounted on the transom of my aluminum boat.  Further, do you agree that, provided that the transom-mount 'ducer is mounted in a low turbulence area of the hull, that on-plane depth readings will be obtained?  My boat will travel at up to 60 mph and I have never had a problem with depth readings.

 

 

SORRY, you are correct, I've been looking at install photos almost all day and just lost my perspective.

Thanks for correcting me.

 

WELL in that case, DON'T use that one and get the proper one for shoot-thru and do it right the first time.

While you can use that torpedo for shoot-thru, it is more difficult to keep it positioned correctly while the epoxy sets up.

When a transducer is available for a particular installation use the proper one.

 

Yes, you can use that torpedo on the transom for high speed depth readings, BUT that is not the BEST application for that hull type and performance capablilty.

That is the difference between mounting a system and installing a system.

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You can attach the LSS transducer above the hull bottom since imaging is a idle speed function.

By above the hull bottom, you mean I can mount it higher in the darker (metal flake) area?

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Which would be the best place for the sidescan transducer?

under the step (image 1)

8_zps8185b536.jpg

 

or

 

above the step to the right side (image 2)

7_zpscb2f26b2.jpg

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Something to consider. For the best images, the transduer needs to be parallel with the water's surface when you are scanning.

 

Most boats sit on the water with a bow up attitude when idling with the outboard. Base your attachment on that premise.

You can't get that attitude under the step unless it is reversed from how you are holding it.

 

Additionally the farther from the hull bottom that transducer is, the slower you will have to go to get clean non-aerated water flowing across it. The transom step creates a vacuum when you are moving forward.

Marine sonar won't work through air.

 

The best location for the fastest scan speed and still have the transducer protected from possible impact damage is above the hull drain. BUT that will depend on the waters you fish. If you fish in timber/stumps a lot, you may want it on the metal flake a little more to the left just below the motor mount bolts. That will give the left side scan pulse a better "view" past the motor mount, but not so close to the lower unit that it will hit the transducer when trimmed all the way down. You will have to trim out some when scanning if you put it on the transom, probably not if under the transom.

 

Trim your motor all the way down to check the clearance.

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Here is where I ended up installing the sidescan....above the drain.

I still have to secure cable and adjust the transducer.

image_zpse32e5fc6.jpg

Still weighing the 2d transducer...I know you said thru the hull....but a couple of things.... There are already 2 transducers in the hull. 1 is for my in dash sonar pinger. The other is an old one and previous owners cut the cable. Not sure there is enough room to mount another in hull and get good results....had my old humminbird transducer mounted on the transom with no problems....thinking about mounting on transom (right side just left of tie down strap.) I want it right but not sure it will go in hull?

image_zpsc9ba0633.jpg

image_zps90c66fc0.jpg

EDIT

ordered transducer for thru the hull......see a good place to mount it?

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Remove the transducer with the cut cable. Just chip some of the epoxy from around it and give it a whack on the side with a hammer.

 

Hopefully you ordered the SHOOT-THRU and not the THRU-HULL.

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Yes sir....shoot thru........NOT a thru hull.

After chipping and removing old transducer........just epoxy new one in the impression left by the old one or do I need to remove all of old epoxy.

Thanks for the direction and help.

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The old one popped off easily.

Could not wait.......went to the BP and bought the thru the hull transducer.

Will return to BP tomorrow and get epoxy from tracker.

I gots to get it done!

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Attaboy Chris!  I deferred from answering your PM in the hope that the experts (i.e. Wayne) would chime in.  I know very little about fiberglass boats.

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Just make sure the area is clean, sand it a little and clean up with alcohol or a similar quick evaporatng solvent.

Any oil or gas residue will prevent a solid adhesion.

Make sure the epoxy you get is the slow cure type and give it time to harden. I don't trust the idiots that work at BPS. Where I got my boat, the BPS shop didn't even know how to set the tach for the engine and I had returned it twice for them to fix it.

I finally did a web search for the setting and did it myself.

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Mike... I thought you might have slipped out to a lake today.......sure was nice, eh?

Thanks again for all of your help yesterday.

Wayne..got ya. Clean it up and use slow curing epoxy. I'll watch 'em at bass pro/tracker.

I'll let y'all know how it comes out.

Appreciate your help.

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