Transducer - Inside or outside fibreglass boat?

[hardworking]

Thanks man! That would be great help.

[hardworking]

Myway - you don't happen to have those pics do you?? Just finished reading the instruction and it wants a 1 inch hole. That's big man!!!


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[MyWay]

here one photo I hope it will help you

sorry about photo
have to till you PC to have look

[hardworking]

Hmm. Thanks man. Is that all below the water line and was it a 1 inch hole. That's a big hole.


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[scottar]

Look up "clam vent". They are available in a few sizes in both plastic or stainless (looks a heap better than plastic). They will definitely be available from somewhere big enough to cover a one inch hole. Typically you would not drill your cable entry hole below the water line - that is not to say I haven't seen it done, but it is not something I would do. The clam vent is sealed with a liberal amount of sika or similar
Images for stainless steel clam vent

[hardworking]

Thank again man. I'm freaking out about drilling an inch hole in my hull.


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[scottar]

No need to freak out - measure twice drill once. Could be worse - you could be mounting a one kilowatt through hull in the bottom LOL.
Hole for that is about 4 inch

[hardworking]

Holy crap!!!


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[Jsmfun]

Mate I did a through hull and it's not as scary as you think I posted it on here (through hull install)

[hardworking]

So I have jumped in and started the install of my sounder into my boat. As mentioned previous, I had to mount on port side as the swim ladder on the starboard would mean it could easily get kicked. The manual states that it shouldn't be mounted on the port, but after some research, people don't seem to notice a difference. Let me know otherwise if you have.

After spending a considerable amount of time planning the location for the hole etc, I started the drill, and went past the point of no return. I have routed the cable "up" through the hull instead of sideways. Nice thin part of the whole, and is sure to be above the waterline. I still have to mount the stainless cover and seal the hole (will pick them up tomorrow)

The head unit was interesting as not really a lot of locations to mount in my boat, but I like the way it worked out! It tilts back for easy viewing and is out of the way where it won't get damaged.

[ranmar850]

I don't know if that 83/200 will have enough power to shoot thru hull. if they are the same as the 83/200 455/800 Chirp transducers fitted to the HDI-7's, they start to lose power and definition very quickly over 20 metres. Mine is mounted on the transom, and i was so disappointed with it i got an HST-WSBL 50/200 second hand, real improvement even at 20 metres, and by the time you get to 30 metres, just no comparison.

[hardworking]

That's another reason why I mounted mine outside.


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