On Tue, 3 Jan 2006 18:36:26 -0000, "Nicholas Walsh"
wrote:

I've just bought a new Raymarine radar in the winter sales (hurray!). Can
anybody advise the correct height to mount the scanner on the mast? My mast
height is about 20m.

About halfway up seems to be typical, perhaps less in your case since
you have a tall rig. I would try to locate it somewhere above a set
of spreaders to minimize interference with the radiation pattern but
maximize physical support. Minimizing interference with sails is also
important.