Winston Collinge uses an easy and attractive way to feed a cable through the length of his mast
I’m very grateful to a previous PBO correspondent who gave me the idea of using a magnet to install a new wire down an existing mast.
On my Colvic Atlanta we had the forestay come away from the mast due to a bad repair years ago under a previous ownership, so we sourced a Seldén headbox to cure that particular problem.
The magnet and drilled nail with fishing line attached. Credit: Winston Collinge
While the mast was un-stepped, we also decided to fit an AIS antenna to upgrade our current system.
The problem was, how to get the coaxial cable down the mast without pulling off the mast shoe, which, after 40 or so years, was well and truly stuck to the mast foot?
Masthead with new AIS antenna connected via the internal cable. Credit: Winston Collinge
Your reader suggested a magnet on the outside of the alloy mast to pull an iron object down the inside.
A connected fishing line was then used as a mousing line for the much heavier coaxial cable to come out at a hole drilled at the bottom of the mast.
And I have to say it all worked perfectly.
Enjoyed reading Magnetic mousing for easy wire installation? 
A subscription to Practical Boat Owner magazine costs around 40% less than the cover price.
Print and digital editions are available through Magazines Direct – where you can also find the latest deals.
PBO is packed with information to help you get the most from boat ownership – whether sail or power.
-
-
-
- Take your DIY skills to the next level with trusted advice on boat maintenance and repairs
- Impartial in-depth gear reviews
- Practical cruising tips for making the most of your time afloat
-
-