'wavrider' and everyone else...
This program really does work, but there's a 'catch'. It has a 'learning curve' that is almost straight up and down. Be prepared to put a LOT of work into setting it up and using it!
I have/use another program for mapping that also uses those terrain, ground coverage and other data so already had that part taken care of. Depending on the distances you want to play with, that's a huge chunk of data and takes a lot of time to down load the first time. You'd also better have lots of drive space for storage.
The other 'catch' is that your math had better be in very good 'shape'. Almost all of the power related data is expressed in 'dB's, so you'd have to know how to do that type of conversion, both ways.
This program isn't new by any means, it's been around for some time. The author just contributed some time and effort into making the user interface more 'usable'. It's an 'open' program, nothing secret about it. It's also been supplanted by more 'recent', 'easier' programs, so is a sort of 'throw-away' type thingy.
My conscience started to bother me after posting about this thing, and this is the 'warning' I should have included in the original post.
BUT... If you're one of those programming geeks, just like to play with this sort of thing, knock yourselves out! Hope you've got lots of aspirin...
- 'Doc