TomGeorge:
Hi,
I think the OP wants a system that provides a complete RC coverage for his drone while it is working in an area where obstacles will compromise a single line of sight RC system
Maybe, but I can think of a few reasons why you might want to setup 'communications' with a land based robot (drone ?), they are not all radio control based.
However rather than provide answers to reasonable questions, the OP responded with poor humor and derogatory comments, making clear that he\she was not going to reveal what they were actually up to.