Marine Electronics Forum - Where to Mount Lowrance 83/200 and LSS1 Transducers

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andrew886
03-26-2012, 08:47 PM
So I recently purchased a Lowrance HDS 8 with Structure Scan to add to my 2006 Sailfish 2660cc with twin F150s. I currently have a Garmin 3010C with GDS20 fishfinder mounted and in good working condition. The transducer is mounted on the starboard side of the drain hole on the transom and I would like to keep it in place as a backup unit to my new Lowrance. I realize it can run the same time as my new unit, but I've been left hanging without a fish finder before and figure why not cover my bases.

That said, I DO NOT want to do a through hull transducer. The boat has a 24 degree deadrise, so I'm not sure a Shoot Through Hull would be an option either. I've considered several mounting options and highlighted them below. Because I have the LSS1 Structure Scan Transducer and a 83/200 Transducer to mount, in addition to twins and a prexisiting transducer, I'm not sure how to configure everything. I'm open to any additional considerations as well.

Option 1: Mount Both Transducers on the Port Side of the Drain Hole, Between the two engines.

Option 2: Mount Both Trandsucers on the Port Side of the Transom As Close to the Trim Tab as Possible, and Away from the Port F150.

Option 3; Mount the LSS1 Beside the Port side of the drainhole, and the 83/200 near the trim tab of the port side engine

Option 4: LSS1 in either of aforementioned positions with trying to mount the 83/200 with epoxy or silicone as a shoot through hull in the bilge near the centerline

Any and all thoughts would be most appreciated. I've also included another sailfish boat picture with transducers on either side of the drain hole, and a trophy that had the 83/200 and LSS1 mounted side by side.

Thanks for your help in advance.

Andrew


andrew886
03-28-2012, 08:18 AM
Anyone??

roberth
03-28-2012, 09:44 AM
Move the one you have now elsewhere, and install one on each side of the drain plug so they can be on same plane and work together for full benefit.

This mount position works excellent for me!


Edd
03-28-2012, 09:58 AM
Move the one you have now elsewhere, and install one on each side of the drain plug so they can be on same plane and work together for full benefit.

This mount position works excellent for me!

:thumbsup::thumbsup::thumbsup:

andrew886
03-28-2012, 03:47 PM
Thats an interesting thought I hadn't considered. Where would I move the other one? Outside the starboard motor between the trim tab? Any reason I couldn't just double up the transducers on the one side of the plug and leave the other in place?

The Kid
03-28-2012, 04:10 PM
Outside the starboard motor between the trim tab?

Yes....or ditch it!

andrew886
03-28-2012, 04:39 PM
Unfortunately I'm not ready to give up on the old Garmin unit or this problem would be a whole lot easier. I'd have just straddled the drain hole and been done. Its this third transducer thats making life harder......I also like that it has a paddle wheel for trolling.

roberth
03-28-2012, 06:02 PM
Same as what the Kid said. I would move the Garmin up to the right and then adjust the unit for the difference so it will read depth accurately. Nothing wrong with moving it outward.

The Kid
03-29-2012, 11:22 AM
Before you decide to put both on one side of the drain, consider you may end up getting a larger transducer for your HDS down the road.

Then, you wouldn't have to move the Garmin as it will be in a good location.

There is nothing wrong with the Garmin starboard the engine.

bigblockcutlass
03-29-2012, 01:57 PM
I also thougt there should be 12 inches apart from eachother.

Edd
03-29-2012, 02:09 PM
It's a maximum of 12" apart and you should mount the StructureScan ducer slightly lower than the 2-D ducer.

andrew886
03-29-2012, 07:12 PM
So it sounds like the consensus is to have one transducer on either side of the drain plug and one on the starboard or port side between the trim tab. That said, what are the advantages of moving my Garmin and not just placing my 83/200 in the outside location? My understanding is they need to communicate together so that they the overlay function can work. Is this all? If so, does anyone actually use this feature? They'd certainly be no more than three feet in that configuration apart, and would be less work than moving the Garmin P66 already in place.

If you still feel strongly that I move the Garmin P66, how should I handle the existing holes? Fill them with 5200? I obviously want my transom to remain water tight, so any insight on what to do if I relocate my old transducer would be appreciated.

Edd
03-30-2012, 06:35 AM
.....That said, what are the advantages of moving my Garmin and not just placing my 83/200 in the outside location? My understanding is they need to communicate together so that they the overlay function can work. Is this all? If so, does anyone actually use this feature? They'd certainly be no more than three feet in that configuration apart, and would be less work than moving the Garmin P66 already in place.

The only reason is for the overlay feature and yes I use it. It is invaluable as a lake fishing tool. In order for the overlay feature to work the 2D and SS ducers need to be NO further apart than 1 foot.

Edd

roberth
03-30-2012, 08:26 PM
Don't sweat the move of the Garmin, just move it, drill the new holes. For the old holes, fill with 4200 or 5200 and a screw and you will be ok. No water will get in there with that type of caulking!

andrew886
03-31-2012, 08:27 AM
Edd,
Thanks for the insight. What do you use the feature for. As I understand it is to physically overlay the 2d on the structure. If you could run a split screen showing both images you'd acco polish the same thing correct? In which case the distance between the divers wouldn't matter.

Roberth,
Thanks for following up on the 4200/5200. I hate leaving a screw in the back after all of that. Just one of those looks things. Maybe I'll look into putting a piece of starboard there and mounting a ducer to it?

jhbarc
03-31-2012, 09:45 AM
Not to hijack the thread but I am installing an HDS 8 with Structure Scan LSS 1 in a World Cat. I was planning on installing the sonar ducer on the port hull and the LSS1 on the starboard hull. Will this not work.

Edd
03-31-2012, 10:37 AM
Yes and No. The sole purpose to keep both ducers within 1 foot is for the overlay feature, so theoretically distance is not a problem if you don't use the overlay feature. However, when using a split screen with 2D on one and SS on the other, you will see the same thing but NOT synced as in overlay. Correct, for divers this is not as important as it is for fishermen. But honestly is is so much simpler to move the Garmin ducer.

I use the feature a lot. Easier to place bait fish on the correct side of the boat.

Edd

roberth
04-01-2012, 06:38 PM
Andrew, I have done both, made a starboard plate and just used a screw. Using a couple of screws are not really that noticeable if they are small enough.
Starboard is actually more noticable, but will allow you to make more changes in future and not keep drilling into your hull. Of course, using starboard, you will create more holes just to hold it on the hull.

seabob4
04-01-2012, 07:31 PM
Cape Horn 23, twins...

http://i259.photobucket.com/albums/hh301/seabob4/Cape%20Horn%2023/CapeHorn23016.jpg



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