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.
ER8 2.4GHz ELRS PWM 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.
ER8 2.4GHz ELRS PWM Receiver fits customers looking for RadioMaster items in Receiver, ExpressLRS Receivers, ER Series Receivers, with RC-MODEL support for choosing the right configuration.
ER8 2.4GHz ELRS PWM 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-ER8 |
| All Variant SKUs | HP0157.RX-ER8 |
| Product Type | Receiver |
| RadioMaster Collections | ELRS Receivers, ER Series Receivers |
| Product Family | RadioMaster receiver range |
| Application | RC aircraft, FPV, surface and telemetry receiver installations |
| Item | ER8 2.4GHz ELRS PWM Receiver |
| Weight | 16.5 grams |
| Protocol / RF | ExpressLRS / ELRS, 2.4GHz, SBUS |
| Channels | 8 channels |
| Size | 43*30*15mm |
| Firmware | Device Category: Radiomaster 2.4Ghz / Device: RadioMaster ER8 2.4GHz Diversity+8xPWM RX |
| Bus interface | CRSF |
| Power supply | DC 4.5 - 8.4V |
| Antenna type | 20cm high sensitivity antenna |
| Output channel | 8CH PWM |
| Wireless protocol | ExpressLRS 3.3.0 pre-installed |
| Telemetry power | maximum 100mw (LUA Adjustable) |
| Battery voltage detection range | DC 4.0 - 35V |
| Serial Output | CRSF / Sbus |
Tags: RadioMaster, HP0157.RX-ER8, ExpressLRS Receivers, ER Series Receivers, Receiver, RC radio
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