Radio Characteristics
The DX7 transmits a digital signal over the 2.4 gigahertz band. It uses spread spectrum technology, which sends its signal over a number of different frequencies within the band. Although Spektrum typically bundles the DX7 with an AR7000 seven-channel receiver, it is also compatible with a number of other receivers that use digital spectrum modulation from both Spektrum and JR.
Battery
The Spektrum DX7 uses a rechargeable 9.6 volt battery pack with nickel metal hydride (NiMH) chemistry. It can be recharged at a rate of 110 milliamps per hour.
Airplane Mode Controls
When in airplane mode, the DX7's left stick controls the plane's rudder and throttle while the right stick controls the plane's ailerons and elevators. It has trim controls located to the inside and below the sticks to allow a certain setting to be dialed in, just as with a real plane. Switches near the top of the unit control the flaps, gear position and response rates of the control sticks.
Helicopter Mode Controls
The DX7's helicopter mode is selected through using the LCD panel and its control buttons located on the bottom of the controller's front face. It operates similarly to the airplane mode, but replaces the gear switch with a flight mode switch and changes many of the top panel switches to control the helicopter's ability to hover.