FrSky D4FR 4CH 2.4Ghz Receiver (w/telemetry)

FrSky D4FR 4CH 2.4Ghz Receiver:

Compatibility:
Compatible with FrSky two way telemetry modules: DFT, DJT, DHT, DHT-U

Specification:
Dimension: 35 x 19 x 8.5mm
Weight: 4g
Operating Voltage Range: 3.5V ~ 10.0V
Operating Current: 60mA
Operating Range: Full Range
Resolution: 3072 (>11bit)

Features:
1) Lighter weight and physically smaller than D8R-II & D6FR;
2) RSSI (PWM) and CPPM output - If CH3 and CH4 are connected by a jumper,
CH1 will output RSSI (PWM), and CH2 will output CPPM for CH1~CH8;
3) Simple wire antenna and another U. Fl antenna connector;
4) Alarm warning on low voltage, poor reception, etc.