I had an arch built to mount my radar, wind
panel etc. Since the arch was slightly taller than my head
, I had a pole added to one side of the arch for both the radar and the wind
gen. The wind gen is on top of the pole and radar is below it.
To figure out height of the pole, I broke one of my cardinal rules and read the instructions on the radar. Radomes have a sweep that angles down below horizontal and you don't want the radar "taking pictures" of your body every sweep. Since my helm
position is about 8ft forward of the radar pole, I used the downward angle in the radar instructions to estimate the height I needed to avoid X-raying my noggin. Once I had the height of the radar, I put the wind gen above it with enough height to avoid interference
with the radome. This put the wind gen about 16ft above deck
level. The higher you get the wind gen will also improve its output.
You also have to think about weight aloft and how well it is supported. Our welder used schedule 80 pipe for the pole and added support legs in 2 directions. See pic below.