R85C Receiver
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The R85C receiver is compatible with FrSky D8/D16 and Futaba SFHSS protocols, making it a versatile choice for a wide range of RC applications. Its built-in TCXO (Temperature-Compensated Crystal Oscillator) provides improved frequency stability and accuracy by compensating for temperature fluctuations.
Compatibility Note: The R85C is designed for RadioMaster Multi-Protocol radios with protocol fine-tuning capability. It is not compatible with FrSky radios.

Features
- Wide Protocol Compatibility: Supports FrSky D8/D16 and Futaba SFHSS protocols.
- High-Sensitivity 2.4GHz Antenna: Provides reliable signal reception and stable connectivity.
- Built-In TCXO: The temperature-compensated crystal oscillator (TCXO) ensures stable and accurate frequency control across a wide range of operating temperatures.
Specifications
| Item | R85C Receiver |
| Power Supply | DC 4.5 – 8.4V |
| Frequency Range | 2400 – 2483.5 MHz |
| Support Protocol | D8 / D16 / SFHSS |
| Output Channel | 5CH PWM |
| Antenna Type | High-Sensitivity 2.4G Antenna |
| Telemetry Power | 100mW / 20dBm |
| Weight | 5.55g |
| Dimensions | 31.0 × 18.5 × 13.0mm |
TCXO
The built-in TCXO (Temperature-Compensated Crystal Oscillator) provides high frequency stability and accuracy by compensating for temperature fluctuations. This helps maintain consistent and reliable signal reception across a wide range of operating temperatures.
By minimizing frequency drift over time, the TCXO also helps maintain long-term frequency stability and reliable signal performance.

