"Doug Kanter" wrote in message
...
"alex" wrote in message
...


The dealer actually advised me to mount it inside the hull (it is an
fiberglass boat). But then again, he advised me also some other
things
which didn't work.

Again, my only experience is with the Garmin brand, which requires a
totally
different transducer for in-hull mounting. You need to contact your
manufacturer about your particular unit.


The boat is an deep-V. I cannot mount it on the side because of the
trim plates. I do have a couple of questions:
How far should the puck stick out below the bottom ?
Should the the puck be straight (parallel with the bottom) or should
it be mounted at a slight angle ?

Mine said it should be mounted so the bottom face of the transducer
was at
REAL level, or, in other words, parallel to the surface of the water,
and
protruding 1/4" below the surface. If I'm alone in the boat, it's
going to
end up lower because it's a small boat with all the weight in the
back. If
my son's in the boat, his weight levels the boat nicely and the
fishfinder
performs quite a bit better at high speeds.

What does your instruction book say about all this?

I think most fiberglass boats mount the transducer in the bilge, unless
there is foam core down there. It needs solid glass to shoot through.
Do the trim tabs go all the way to the chines? is this a pad-vee?

The tabs could be part of the problem, causing turbulence near the
transducer.

del cecchi