FrSky R9 900MHz 16CH Long Range Receiver With SBUS Output + 2pc 900MHz MMCX Antenna R9 (Range 9 ) is FrSky new generation 900MHz long range receiver. It MUST work with R9M module. R9 Description FrSky R9 and R9M radio control system is the first FrSky long range system which works in the frequency of 900MHz. The R9M module offers 4 switchable RF power outputs to so you can choose the appropriate power for different flight situations. Compared to another FrSky 2.4GHz long range receiver like the L9R, the R9 receiver has a longer operating range up to 10KM and above. Moreover, the R9 is also a redundancy receiver which can connect to another receiver to ensure the security of your aircraft. Specifications Brand name: Frsky Dimension:43.3*26.8*13.9mm (L*W*H) Weight:15.8g Operating Voltage Range: DC 3.5V-10V Operating Current:100mA@5V Operating Rang:Up to 10km or above Firmware Upgradable Compatibility: R9 series TX Number of Channels: R9 EU Version Non-EU Version R9M Mode Telemetry NO-telemetry Telemetry Channel Number 8/8CH 8/16CH 8/16CH Features 900MHz working mode (868MHz for EU) Longer range than L9R Low latency and high precision Support redundancy function Smart Port enabled and support telemetry data transmission Battery voltage detection With RSSI PWM output (marked by P4 on board) Package Including : 1 x FrSky R9 900MHz 16CH Long Range Receiver 2 x 900MHz MMCX Antennas