exchange to one receiver 8 or 9 channel at the same condition with no difference the remote receiver was used only on a quad working perfectly. Specifications:Type: DSM2 Full Range Receiver Channels: 6 Modulation: DSM2 Dimension (WxLxH): .85 x 1.19 x .48 in (26.6 x 30.1 x 12.3mm) Weight: .35 oz (10 Grams main receiver) Input Voltage Range: 3.5–9.6V Resolution: 1024 Compatibility: All DSM2 Aircraft Transmitters and Module Systems Specifications:• Type: DSM Full Range Receiver• Channels: 6• Modulation: DSM2, DSMX• Dimension (WxLxH): .85 x 1.19 x .48 in (26.6 x 30.1 x 12.3mm)• Weight: 26 oz (7.5 Grams main receiver)• Input Voltage Range: 3.5–9.6V• Resolution: 2048• Compatibility: All DSM2 and DSMX Aircraft Transmitters and Module Systems الحالة جديد النوع الطائرات بدون طيار