Thank you gents for the discussion.

Yes, I talked to Lowrance and of course they have a $200.00 (new tranducer
with longer coax) and my installation time is about a day's work. Of course
when you start pulling off panels of a 40 year old boat with flybridge you
will find another day's work.

I don't have a scope but I have a digital volt/ohm meter. I was hoping there
was a method of testing the existing transducer for compatibility.

The plug's ends do not match (male -- female) so I would have to splice to
use the exisiting.

Sounds to me that the most guaranteed way to buy the new product and install
it. But I am a Ham, and more of an Appliance Operator. The formulas you
shown above were most interesting but I didn't understand the theory and the
conclusion.

If I take it to the Marina, wow, that would be another $250.00 costs for
them to install a new tranducer, plus the costs of labor for their chap to
install it. There is nobody at any Marina around here (Southern Ontario
Canada) that would understand what you folks have talked about above and
they would instantly and simply order the new parts and install them. Maybe
installing less quality cables as the ones that are there are gutsy ones and
it is a through hull fitting already in place. In fact all Marina's around
here have very negative reputations for stuff like this.

So if you folks were in the same boat as I am, would you splice it? Would
you be worried about it working incorrectly or the possibility of it
damaging the head? I am not worried about deep water operations, never in
water over 100 feet deep and I believe these are good to 800 feet.

Would you guys simply slice it properly? Job done in an hour. Or take
Lowrance's suggestion and spend the money and time?

Thansk again for very informative and interesting discussion,

Cheers and Best Regards

73s

Tom






"Wond" wrote in message
...
On Tue, 03 Mar 2015 17:10:29 -0500, Tom wrote:

Hi

I replaced my Eagle Supra ID fishfinder head with a new Lowrance Elite 5
(came with new transducer). The present transducer is the round style
glued to the bottom hull (through hull).

Is there a way to test the transducer to see if it is 200khz compatible
for the new Elite 5? Can I simply splice it myself or is there a reason
why I shouldn't. I have spliced coax many times.

But I really don't want to replace that cable up to the flybridge
through a lot of fishing and pulling. I am wondering if I can use the
old transducer and cable (extension & old transducer with 10ft wire). I
think the extension is 15 feet or so.

Any ideas? I am hoping I can simply splice the plug of the old
transducer wire to the new head.

Thanks for any ideas

Cheers

73s

A web search shows your Eagle spec'd 192KHz. Ihe Lowrance seems to be
a dual freq. 83/200KHz. Briefly, to get optimum performance use the new
transducer.