My Tempest is currently mounted about 3" away from a pole that’s a little under 3/4" in diameter. I know this isn’t ideal as there will be eddy currents and such coming off the pole which may affect the wind sensor if the wind is coming from that direction.
My question is how far away would I need to mount it to reduce the effect to a relatively negligible amount? Of course the easiest would be to leave it as-is, if the effect isn’t too great. Next easiest would be an 8" standoff. After that, I’d be looking at something more like a 24" standoff. If that’s not enough, things get a bit more difficult.
To keep things simple, let’s start by ignoring the impact of vibrations on the rain sensor. I’m less concerned about accurate rain than I am about wind.