Just used the FPV booster app ( viewtopic.php?f=27&t=13496)on my Vision Plus with the Horizon antennas and the FPV range has gone way out beyond what the stock 5.8 antenna can cope with, so now I think it's time to get your dual band antenna !
https://itunes.apple.com/gb/app/vision+ ... 13138?mt=8
https://itunes.apple.com/gb/app/vision+ ... 13138?mt=8