DX7 7 Channel System w/ AR8000 Receiver This is the Spektrum DX7 7 Ch System with AR8000receiver. You can take advantage of all seven channels right away with the included AR8000. This 8-channel DSMX receiver is perfect for all types of aircraft, from warbirds to 3D helicopters. Its also compatible with the Spektrum Flight Log and telemetry modules. The DX7 comes with an impressive list of programming features that rivals that of much more expensive t