I own 2 Phantoms, both fly great, no problems, but both tend to lose signal at about 1000 feet high and 1000 feet out horizontal. My software is set up to limit it well beyond 1000ft both directions. As I said, this is on 2 different Phantoms. I've done no modifications to the antenna (yet) and I see people here getting 3000 feet out with a stock set up. What is going on here causing some to get those distances and others like myself top out at about 1000ft? Thanks.... J.