With an R/C Truck I tested the 900mhz vs 2.4 ghz wireless video gear. I used my FPV truck instead of a plane so I don't risk a lost aircraft. FPV Driving from the TV inside the garage I placed both transmitters in the same location along with the RX and whip antennas (no patches) so I can fairly judge the 2 bands. I also tested the DX7 vs the 9C for range and glitching with onboard video gear. This backyard jump section is where I get the worse video drop outs and glitching since the signals must pass through a garage and house, everywhere else I get clear video with both bands. This test is for no reason other then my own interest , your results may vary.
Test 1: DX7 with AR7000 RX and 500mw 2.4ghz wireless gear
Test 2: Futaba 9C with R148 RX and 500mw 2.4 wireless gear
Test 3: DX7 w/ AR7000 Rx and 500mw 900 wireless gear
Test 4: 9C w/ R148 RX and 500mw 900mhz gear
Test 1 results: Shorter range with some minor loss of radio signal. Video acceptable but poor range.
Test 2 results: Minor radio glitching, Acceptable Video.
Test 3 results: No radio loss good control. Better Video. Best of the 4.
Test 4 results: Minor radio glitching, Better Video.