Hi Joe
My experiences seem to be way below the performance others have been enjoying.
Most of my terrain is hilly and well forested.
A few weeks ago, I managed to get a 500 metre shot, no trees, but a small hill (perhaps 3-6 metres?) in between base & rover. Tried venturing 100 metres to another point (along the same 500 m radius) and lost fix due to broken radio transmission.
This has been the peak of my radio range thus far.
Usually I will lose fix at 200-300m.