FrSky D4R-II 4ch 2.4Ghz ACCST Receiver (w/telemetry)

This D4R-II is a full featured mini sized 4 channel receiver by FrSky. What makes this receiver different the the D4FR? The D4R-II's data port allows you to connect a sensor hub so you can connect GPS, Variometer, temperature, RPM and all of the other great FrSky sensors. It also has 2 full length detachable antennas. All of this is available in a package just a little larger then the D4FR. Compatible with FrSky two way telemetry modules: DFT, DJT, DHT, DHT-U Specifications: Dimension: 40*22.5*6mm Weight: 5.8g / 5g (naked) Operating Voltage Range: 3.5V-10.0V Operating Current: 60mA Operating Range: Full Range (>1.5km) Resolution: 3072 (>11bit) Features: Firmware upgradeable! 2 full length antennas (replaceable) One external analog telemetry port and one digital data-stream port (connect to Sensor Hub FSH-01) RSSI (PWM) and CPPM output - If CH3 and CH4 are connected by a jumper, CH1 will output CPPM for CH1~CH8, and CH2 will output RSSI (PWM) Lighter weight and physically small