Not getting accurate survey results (Reach RS+)

[wizprod (Christian Grüner)]

there are plenty, but again, those are pretty basic, and most will just give you a seen/not seen scenario.

However, this one allows you setup obstructions, so you can get much closer to real-life (sorry, web-based):

GNSS Predictor?

I really like this one: Settings - Mission planning , although it is only available through the web. The really neat thing is the use of user defined obstructions. That makes it really good for picking out opportune moments for collecting data with limited skyview (and when not to do it!).