This document is the instruction manual for FrSky D4R-II wireless radio controller, which introduces the product's compatibility, specifications, features, and characteristics.
The FrSky D4R-II is a lightweight wireless radio controller compatible with FrSky two-way telemetry modules (DFT, DJT, DHT, DHT-U). It features firmware upgradeability, an external analog telemetry port, and one digital data-stream port for connection to the FS-H01 Sensor Hub. The device supports both RSSI (PWM) and CPPM output modes depending on channel configuration.
| Dimensions | 40 * 22.5 * 6 mm |
|---|---|
| Weight (naked) | 5 g |
| Operating Voltage Range | 3.5 V - 10.0 V |
| Operating Current | 60 mA |
| Operating Range | > 1.5 km |
| Resolution | 3072 (> 11 bit) |
It is compatible with FrSky two-way telemetry modules: DFT, DJT, DHT, and DHT-U.
The device operates within a voltage range of 3.5 V to 10.0 V.
The effective full range is greater than 1.5 km.
The controller has a resolution of 3072.