HB 798 SI Transducer question

[ewatson]

I just recently bought one and was look at how people installed the transducer. I noticed that there were a lot of them that were installed very close to motor and just below the step portion of the hull. The instruction say at least 15 in from prop and at bottom of step. Can anyone shead some light on this?

[Embrey]

i dont put mine on the bottom for the fact that ill quickly break it off on a stump...

[Rayman]

I have one myself. Had to remount it twice. It needs to be away from the engine. 15 inches sound about right. "Keep it away from the bottom of the boat!" About half way between the bottom of the boat and the waterline on your transom would be fine. Some fiberglass boats have different shaped transoms, but the transducer bracket should be adjustable so you can mount it to a curved transom, but still be able to adjust the tranducer to a level position.

Ray

[ewatson]

Rayman,
Are you still able to get basic sonar functions at on plane speeds mounting it up higher on the transom?

[bluesman]

I have mine mounted beside the drain plug on the step. I have seen a lot of guys mount theirs on the jack plate, and they say they work great and don't put any holes in the boat.

If you want to see some Humminbird mounting pictures, check out

http://www.bbcboards.net/zerothread?id=484693

Mine works just fine mounted to the transom step, but if I were doing it again, I would try the Jack Plate or custom motor mount bracket first. I just don't like putting holes in a boat.

[Embrey]

Rayman,
Are you still able to get basic sonar functions at on plane speeds mounting it up higher on the transom?

not even a little bit.

[Les Young]

Mounted my cousins on the jackplate & it works great. You just need to make sure it has a clear line of sight all the way across the boat with motor trimmed completely down. Haven't had any issues at all.

[Rayman]

Once I am on plane I do not have any depth reading at all. Or anything else for that matter. That is the only thing I don't like about the unit. I do watch my navionics which lets me know if I'm heading towards shallow water. To be safe, during winter pool I will keep it between the cans when I'm on plane.

[Trophyhunter8]

you will need a high speed transducer and mount it low like any other. then get a y splitter. you will have two transducers mounted si for off plane and a reg for plane. I have mine set up like that and it works like a charm

[Rayman]

Thanks for the tip. That will give me something to do in the off season.

[bluesman]

you will need a high speed transducer and mount it low like any other. then get a y splitter. you will have two transducers mounted si for off plane and a reg for plane. I have mine set up like that and it works like a charm

I think you can also use a shoot-thru-hull transducer in the bilge area along with the y splitter, if you prefer.

[Trophyhunter8]

yep that would work fine also. it's alot better to tear up a 60 dollar trans than a 200