[C320-list] Wiring Speed Transducer

[BairdRJB at aol.com]

You may recall a post from me a few weeks ago inquiring about replacing the 
 paddlewheel on a Raymarine ST60 Speed Instrument.  I ended up working with 
 a company called GEMECO.  Very helpful folks.  By their  recommendation, I 
am replacing the entire insert/transducer.  Not only was  the paddle wheel 
broken, but the brackets that protect the paddlewheel was  cracked and could 
snap off sometime in the near future.  They are shipping  me an ST800-INS 
at the cost of $84 (before shipping).
 
QUESTION:  To install this thing, they say I don't have to run the  cable 
all the way back to the helm.  They say I can cut the cable and  connect it 
to the original cable using a junction box.  I have never done  that kind of 
work before.  Is he talking about a butt splice or a terminal  block, or 
what?  Obviously it needs to be waterproof.  I am assuming  that making this 
kind of splice might compromise the speed-reading a bit, but I  imagine it 
would be only marginal.  Am I correct in that assumption?
 
Thanks, all, for your guidance.
 
Bob Baird
Star Dust, 2001, Hull 784
Whitehall, Michigan