Yeah, the Rx and mounting have a lot to do with it. Spektrum says you should get 30 yards in range test mode with a full range Rx. That translates to about a kilometer in operation. But that's best case. Using reverse engineered code on either end (Deviation Tx, Orange Rx or Lemon Rx or the other HK stuff) probably loose some range. Likewise, a park flyer Rx (as is found in most quads) will see significantly less range.
When in doubt, test! 5.0 has a range test function. if your model uses 100mW, you should get 30x the test mode range under normal operations. Going to 150mW isn't recommended, as it sucks power for not as much extra range as one would expect, but you can use it for extra range.
And of course, you should always test a new model, at a new airfield, after modifying anything or after doing crash repairs. It's not just the possibility of a crash you're avoiding, but an out of control aircraft represents a safety hazard. In the USA, such testing is also part of the AMA safety rules, and flying according to those means you're not in violation of the FAA regulations even if you're ignoring their guidelines.
Do not ask me questions via PM. Ask in the forums, where I'll answer if I can.
My remotely piloted vehicle ("drone") is a yacht.
