RadioMaster R81 R84 R86 R86C R88 Receiver – 2.4GHz D8 Long Range RC Receiver with PWM & SBUS for Planes, Boats & Drones (4CH/6CH/8CH Options)

The RadioMaster R-Series Receivers (R81, R84, R86, R86C, R88) are compact and reliable 2.4GHz D8 protocol receivers designed for RC planes, drones, and boats. Offering a variety of channel outputs and form factors, they provide versatile solutions for both lightweight racing builds and larger, more powerful models.

Each model is optimized for different applications:

R81 (8CH SBUS) – Ultra-light at only 2 g, with compact dimensions (17×11×3 mm), perfect for micro drones and tight builds.

R84 (4CH PWM) – A 3 g receiver with 30×15×5 mm size, ideal for small fixed-wing models needing standard PWM output.

R86 (6CH PWM) – At 4.8 g, provides stable PWM channels for mid-size aircraft or multirotors.

R86C (6/8CH PWM + SBUS) – More versatile option supporting both PWM and SBUS, weighing 8 g, suitable for flexible drone setups.

R88 (8CH PWM + SBUS) – The largest of the series at 11 g, with full PWM/SBUS support, perfect for larger RC planes and UAV builds.

Built for D8 transmitter compatibility, the R-series supports Flysky, Jumper T8SG, RadioMaster TX12/TX16S, and other D8-based radios. With a control range exceeding 1 km and built-in RSSI feedback, they ensure strong signal reliability even during long-range flights.

All models feature dual 15 cm antennas, improving reception and reducing interference. They operate within a voltage range of 4.5V–8.4V, making them compatible with most RC systems. Their lightweight construction makes them an excellent choice for models where every gram counts, while still maintaining robust connectivity.

Specifications (per model):

R81: 8CH SBUS | 4.5–6V | 17×11×3 mm | 2 g | 6 cm antenna

R84: 4CH PWM | 4.5–6V | 30×15×5 mm | 3 g | 15 cm antenna

R86: 6CH PWM | 4.5–8.4V | 28×16.5×11 mm | 4.8 g | 15 cm antenna

R86C: 6/8CH PWM + SBUS | 4.5–8.4V | 45×21.2×12.7 mm | 8 g | 15 cm antenna

R88: 8CH PWM + SBUS | 4.5–8.4V | 40×26×16 mm | 11 g | 15 cm antenna

Package Includes (per model):

1 × RadioMaster Receiver (R81 / R84 / R86 / R86C / R88)

Whether you’re flying a lightweight racing drone, a fixed-wing plane, or a large RC boat, the RadioMaster R-Series Receivers deliver reliable long-range connectivity, versatile channel options, and ultra-lightweight designs, making them a trusted choice for hobbyists and professionals alike.