Powerhobby ARX-482R 4-Channel Receiver - Compact Compatible RC Rx

In this review of the Powerhobby ARX-482R, the bottom line is simple: this compact 4-channel receiver is for modelers who need a small, compatible replacement that keeps telemetry and stable operation in tight builds. The ARX-482R stands out because it mirrors Airtronics and SANWA FH protocols while providing a built-in high sensitivity antenna and a voltage-stabilizing circuit, so it is useful in rock crawlers and on-road cars where space and reliable signal matter most.

Key Features

• Compatibility: Works with SANWA and Airtronics FH3/FH4T systems so users can replace an OEM receiver without changing the transmitter setup.
• Small L-shape design: The compact 23.6 x 18.4 x 28.4mm footprint saves chassis space and fits into tight RC car cavities.
• Wide operating voltage: Runs from 3.5V to 8.4V, making it compatible with 1-2s LiPo power systems and common battery packs.
• Voltage stabilizing circuit: Built-in stabilization helps prevent sudden low-voltage dropouts that can cause loss of control.
• Bidirectional telemetry: Transmits receiver voltage back to the transmitter so pilots can monitor battery state in real time.
• Full 4CH plus BAT port: Provides four PWM outputs and a dedicated battery port to support steering, throttle and auxiliary functions on most RC cars.

Who It's For

This receiver is ideal for hobbyists upgrading or replacing an Airtronics or SANWA-compatible receiver in compact RC cars, rock crawlers, and lightweight off-road models where space is limited. Its telemetry and stabilized input make it a good choice for drivers who want real-time battery monitoring and fewer surprises from voltage sag.

It is less suitable for pilots who require more than four channels, non-PWM protocols, or integrated diversity antennas for extreme-range flying. For applications demanding more channels or specialized failsafe features, a different receiver family would be a better fit.

Pros & Cons

Pros

• Compact L-shaped form factor allows installation in cramped electronics bays.
• Compatible with SANWA/Airtronics FH systems, easing replacement and upgrades.
• Voltage stabilization and bidirectional telemetry improve reliability and monitoring.
• High-sensitivity built-in antenna delivers dependable reception for typical RC car use.

Cons

• Only 4 channels available, so users needing extra servos or switches will need a different model.
• Documentation and bind procedure in the supplied description is brief, so some users may want more detailed setup steps.

Specifications

Brand	Power Hobbies
Model	ARX-482R
No. of Channels	4CH
Operating Voltage	3.5V - 8.4V
Dimensions	23.6 x 18.4 x 28.4mm
Weight	7.3g
Compatibility	SANWA FH3/FH4T and Airtronics systems (M12, M11X, MT-4, MT-4S, M12S, M17 and similar)

Our Verdict

The Powerhobby ARX-482R is a compact, practical receiver for RC drivers who need reliable FH-compatible control in limited spaces. With voltage stabilization, telemetry and a high-sensitivity antenna it offers good value for four-channel car and crawler builds, though those needing extra channels should consider larger options.

Frequently Asked Questions

Is this receiver compatible with SANWA transmitters?
Yes, the ARX-482R is compatible with SANWA FH3/FH4T systems and similar Airtronics transmitters.

What voltage batteries can I use with this receiver?
It supports an operating range of 3.5V to 8.4V, which covers 1-2s LiPo setups and common battery packs.

How many channels does the receiver provide?
The unit offers four PWM channels plus a BAT port suitable for steering, throttle and two auxiliary functions.