Hi all. This is my ground rig. I have upgraded antennas to 2 x 9 DBI omnis, fed by 2 x 2000mW amps fed by lightbridge. All driven by 12 v 10000mAh li-ion battery. Standard wire omnis on the pv2. So far achieved 4 km at full 1080p resolution with near zero lag. Video feed goes to hdmi cable to 24 inch monitor inside, so no sun glare and no iOS limitations on video. Important to note that the antenna spacing is around 7 inches to avoid distortion of 2.4 Ghz wave length between antennas. Can probably go further, just a matter of battery and nerves Hope this is useful for distance chasers !