Originally Posted by AirBoyzT
Does the ST40 require a sensor on top of the mast though?
nope, the sensor IS the Rotavecta part, you can put that anywhere in the cockpit, you tell the software
where it is installed, to acommodate its idiosincracies. (not the same wind
at top than at cockpit level you see.
that Rotavecta sensor can go with the ST60 display if you like analog display and can afford the price
in short, ST40 and ST60 wind instruments are the displays, Rotavecta is the windvane which can go anywhere you need and it is seen frequently in sailboats on cockpit, mostly from my experience (Raymarine Tech) on blue water
sailboats, used sort of a backup for the top vane (in case it gets blown away, which can happen). and used in motorcruisers as well, on flybridges, aside radar
domes, or sattelite things.
and YES to last minute question, it doesnt need to be at the mast.
EDIT: take a look at it at raymarine site, I havent told U how it looks, unlike a "common" windvane, this thing is sort of a little pole with a rotating caps at the top, with one of them with a specialdesign which through a clever software/hardware thing, sorts the direction of the wind blowing. (more easy to see it than to explain it, I am afraid, hope you get the idea.