SKU: DRFC-3280
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RadioMaster R85C Receiver - 5CH PWM, D8/D16/SFHSS Compatible

₹1,999.00 (Inclusive of all taxes)
Out of Stock

The RadioMaster R85C Receiver is a 5-channel PWM unit compatible with FrSky D8/D16 and Futaba SFHSS protocols, designed for integration with RadioMaster Multi-Protocol transmitters. It operates on a 4.5-8.4V DC power supply and features a high-sensitivity 2.4GHz antenna for reliable control link performance.

Features

  • 5-channel PWM output for direct servo or flight controller connection.
  • Protocol compatibility includes FrSky D8, D16, and Futaba SFHSS.
  • Integrated TCXO (Temperature Compensated Crystal Oscillator) ensures stable frequency control across temperature variations.
  • Compact dimensions of 31mm x 18.5mm x 13mm and lightweight 5.5g build.
  • Designed for use with RadioMaster Multi-Protocol transmitters only; not compatible with native FrSky radios.

Out of stock

Description

The RadioMaster R85C Receiver provides a stable and accurate control link for RC models and drones, leveraging a high-sensitivity 2.4GHz antenna and a TCXO for consistent performance in varying environmental conditions. Its 5-channel PWM output offers direct compatibility with servos, flight controllers, and other PWM-based peripherals.

Engineered for seamless integration with RadioMaster’s Multi-Protocol radio systems, this receiver requires a transmitter capable of fine-tuning the D8, D16, or SFHSS protocols. Its compact, lightweight form factor makes it suitable for small to medium-sized builds where space and weight are critical considerations.

Key Features

  • Multi-Protocol Compatibility: Supports FrSky D8, D16, and Futaba SFHSS protocols for versatile radio system integration.
  • TCXO Frequency Stability: Built-in Temperature Compensated Crystal Oscillator maintains precise frequency control, minimizing drift due to temperature changes.
  • High-Sensitivity Antenna: Integrated 2.4GHz antenna design enhances signal reception and link reliability.
  • Compact & Lightweight Design: Minimal footprint (31x18.5x13mm) and low mass (5.5g) ideal for weight-sensitive FPV and RC aircraft.
  • Wide Operating Voltage: Accepts 4.5V to 8.4V DC input, compatible with 1S to 2S LiPo setups or regulated BEC outputs.
  • Dedicated System Integration: Optimized for use with RadioMaster Multi-Protocol transmitters, ensuring reliable binding and telemetry handshake.

Applications

  • Small to medium-sized FPV drone builds requiring a compact, lightweight PWM receiver.
  • Fixed-wing and rotorcraft RC models compatible with FrSky D8/D16 or Futaba SFHSS protocols.
  • DIY drone projects using RadioMaster Multi-Protocol transmitters for control.
  • Weight-critical micro and nano drone platforms where every gram counts.
  • Educational or experimental RC platforms needing stable 2.4GHz control links.

Technical Specifications

ModelR85C Receiver
ProtocolsFrSky D8, D16; Futaba SFHSS
Output Channels5CH PWM
Frequency Range2400 - 2483.5 MHz
Power SupplyDC 4.5 - 8.4V
Antenna TypeIntegrated High-Sensitivity 2.4G
Key FeatureTCXO (Temperature Compensated Crystal Oscillator)
Dimensions (LxWxH)31 x 18.5 x 13 mm
Weight5.5 g

Frequently Asked Questions

Is the RadioMaster R85C Receiver compatible with my FrSky X-Lite or Taranis radio?

No, the R85C is designed exclusively for use with RadioMaster Multi-Protocol transmitters (like the TX16S, Zorro, or Boxer) that can emulate the FrSky D8/D16 or Futaba SFHSS protocols. It will not bind natively with a standard FrSky transmitter. You must use a compatible RadioMaster radio with the appropriate protocol selected.

What is the benefit of the TCXO in the R85C receiver?

The Temperature Compensated Crystal Oscillator (TCXO) provides superior frequency stability compared to standard oscillators. It actively compensates for signal drift caused by temperature changes during flight, resulting in a more reliable control link with reduced risk of signal glitches or failsafes in varying environmental conditions.

Can I power the R85C directly from a 2S LiPo battery?

Yes. The receiver's wide input voltage range of 4.5V to 8.4V DC makes it directly compatible with 2S LiPo batteries (nominal 7.4V). For 1S setups (3.7V), you would need a voltage regulator or a BEC to boost the voltage within the operating range. Always ensure your power source is within the specified limits.

How do I connect the R85C to my flight controller?

The R85C provides 5 standard PWM signal outputs. Connect the signal wire (typically white or yellow) from each channel to a corresponding PWM/SBUS input pin on your flight controller. The ground (black) and positive power (red) wires from the receiver's connector must be connected to a common ground and a 5V BEC or suitable power source, respectively, ensuring correct polarity.

Package Includes

  • 1 x R85C Receiver
  • 1 x User Card

Additional Information

Weight 0.0055 kg
Dimensions 3.1 × 1.85 × 1.3 cm