A few years ago when Satcom C was the leading edge of offshore communication a 
friend of mine emailed me as he sailing towards the Tuamotu Archipelago.  He 
asked for some diagnostic assistance as his radar was losing functions.  After 
some question and answer we determined the radar platform had flopped back and 
forth until several of the radar cable's conductor's stress cracked at the 
bending point.  It was not a Questus pole/mount but a lower cost platform with 
an undersized stabilizer.

Once we determined it was the cable, my recommendation was to re-solder the 
failed conductors and lock the platform to prevent further damage.  It was 
difficult for him to do the work underway but the concern over un-charted reefs 
was good incentive to persevere.

Calypso's radar platform uses a power boat trim tab actuator controlled by a 
switch for altering its angle.  The cable experiences very little bending 
motion.  We can match the radar antenna to the boat's average angle of heel if 
needed.  We did not change it from level during our trip around Vancouver 
Island.  The adjustment would mostly be helpful on long offshore tacks.

Martin
Calypso
1971 C&C 43
Seattle


-----Original Message-----
From: CnC-List [mailto:[email protected]] On Behalf Of Leslie Paal 
via CnC-List
Sent: Thursday, September 04, 2014 5:17 PM
To: dwight; [email protected]
Subject: Re: Stus-List dummy move and followup question

let us know in a year or so how well it is holding up.  I would not trust 
twisted wires in my home...

But, Good Luck!

Leslie.
used to listen/talk to spacecraft a few million miles away.
--------------------------------------------
On Wed, 9/3/14, dwight via CnC-List <[email protected]> wrote:

 Subject: Re: Stus-List dummy move and followup question
 To: "'Martin DeYoung'" <[email protected]>, [email protected]
 Date: Wednesday, September 3, 2014, 11:29 AM
 
 My old Furuno 1720 radar
 has about 13 conductors, some the same color but  different thicknesses...I 
spliced them all  together just by twisting the  central wires  together and 
taping the joints...takes a fair bit of time  but  my signal is my better and 
much more  reliable than the old connector pieces  that  were supplied with the 
cable.  The joint section is inside  the boat  under the settee near the base 
of  the mast with several feet of wire to  spare  on either side so I could do 
this work in good light and  without  contorting my body totally out of  
shape...no need for shrink warp because  the  joint is dry inside the cabin...I 
feel this was easier than  installing  a proper connector similar to  that 
which came with the radar unit and the  repair has never failed me.
 
 Dwight Veinot
 C&C 35MKII,
 Alianna
 Head of St. Margaret's Bay,
 NS

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