I have a P2, Zen H3-3D, Futaba receiver with 7" Black Pearl FPV. I bought my kit from DSLRPros and they set it up, programmed it and test flew it before shipment. Yesterday, I flew with the gimbal, GoPro and FPV for the first time. My problem is the reception of my monitor. It's bad when I am 10 ft away, when it gets 20-25ft away it's just static. I called DSLRPros and they said that the channel and frequency needs to be changed on the monitor and sent me an email with manuals on everything. I understand how to change the channels and frequency but how do I know which one is correct? Should it match my Futaba? If so, how do I determine which frequency and channel the Futaba using? I am a beginner and do not understand so please be kind.