How to assemble an ARF RC aircraft step by step
A general ARF assembly workflow for many aircraft: dry fit, hinges, servo installation, power setup, CG, control checks and first-flight preparation.
R85C Receiver is an RC product from RadioMaster. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.
R85C Receiver fits customers looking for RadioMaster items in Receiver, with RC-MODEL support for choosing the right configuration.
R85C Receiver is a RadioMaster product intended for RC aircraft, FPV, surface and telemetry receiver installations. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.
The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
A general ARF assembly workflow for many aircraft: dry fit, hinges, servo installation, power setup, CG, control checks and first-flight preparation.
How to select servos for trainers, sport aircraft, large models, cars and boats without under-sizing a control surface.
One of the most important setup guides: find the CG, install the flight battery, balance the aircraft and avoid nose-heavy or tail-heavy surprises.
A repeatable inspection routine for control direction, radio range, failsafe, battery, fasteners, propeller, CG and field readiness.
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
| Technical Specifications | |
| Manufacturer | RadioMaster |
| Brand | RadioMaster |
| Product Code | HP0157.RX-R85C |
| All Variant SKUs | HP0157.RX-R85C, HP0157.RX-R85C-LBT |
| Available Variants | FCC; LBT |
| Product Type | Receiver |
| Product Family | RadioMaster receiver range |
| Application | RC aircraft, FPV, surface and telemetry receiver installations |
| Item | R85C Receiver |
| Weight | 5.55 grams |
| Dimensions | 31.0*18.5*13.0 mm |
| Compatibility | FrSky radios |
| Protocol / RF | 2.4GHz |
| Channels | 5 channels |
| Frequency range | 2400-2483.5Mhz |
| Power supply | DC 4.5 - 8.4V |
| Antenna type | high-sensitivity 2.4G antenna |
| Output channel | 5CH PWM |
| Telemetry power | 100mW / 20dBm |
| Support protocol | D8/D16/SFHSS |
Tags: RadioMaster, HP0157.RX-R85C, Receiver, RC radio
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