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Spektrum AR631 DSMX 6-Channel AS3X And SAFE Receiver
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Spektrum AR631 DSMX 6-Channel AS3X And SAFE Receiver

Spektrum AR631 DSMX 6-Channel AS3X And SAFE Receiver

Brand: Spektrum

Part No: SPMAR631


THIS ITEM IS DISCONTINUED AND NO LONGER AVAILABLE.

PLEASE SEE ITEM #SPM-1031 AS A REPLACEMENT

The Spektrum AR631 DSMX 6-Channel AS3X and SAFE Receiver brings stabilised control and Smart telemetry to a wide range of RC aircraft, from park flyers to larger sport models. This full-range unit integrates AS3X and SAFE technologies, a long 230mm antenna for flexible installation, and a convenient bind button for quick setup. Part number SPMAR631.

Overview

Built on Spektrum DSMX protocol with suggested compatibility for DSM2 systems, the AR631 uses a 3-axis MEMS gyro and expert-tuned control software to counter wind, turbulence and torque without adding latency or limiting control throws. Forward Programming lets you configure AS3X and SAFE directly from a compatible Spektrum transmitter, and fly-by range telemetry support keeps you informed in the air.

With Smart Technology, the throttle port can auto-detect a Smart ESC to provide one-wire telemetry, sending key data such as voltage, current, temperature and RPM back to a telemetry-capable Spektrum DSMX transmitter. Spektrum Avian ESCs have suggested compatibility for Smart features.

Features

  • Long 230mm antenna for more versatile installation options
  • Built-in AS3X stabilisation with SAFE flight envelope protection
  • AS3X and SAFE setup via Forward Programming on compatible Spektrum transmitters
  • Suggested compatibility with Spektrum Smart ESCs for one-wire telemetry data
  • Streamlined, end-pin design in a lightweight hard-case
  • Bind button for easy, plug-free binding
  • DSMX protocol receiver with suggested compatibility for DSM2 systems
  • Fly-by range telemetry support
  • Standard servo connectors

AS3X and SAFE Technologies

AS3X technology enhances stability by smoothing out external forces so the model tracks precisely. SAFE flight modes use AS3X to limit bank and pitch angles, helping prevent extreme attitudes while maintaining normal flight performance.

Forward Programming

Configure receiver parameters wirelessly from the transmitter—no separate computer or mobile device required. Set failsafe types (SmartSafe, Hold Last, preset) and tune stabilisation to suit your model.

Smart Telemetry

Pair with a Smart ESC and a telemetry-capable Spektrum DSMX transmitter to see vital power system data in real time. A transmitter update may be required for Smart features.

Specifications

  • Antenna Length: 9" (229 mm)
  • Application: Air
  • Band: 2.4GHz
  • Bind Method: Bind Button
  • Channels: 6
  • Data Port: Yes
  • Flight Log Compatible: Yes
  • Input Voltage: 3.5–9V
  • Modulation: DSMX
  • Product Height: 0.55" (14 mm)
  • Product Length: 1.53" (39 mm)
  • Product Weight: 0.28oz (8g)
  • Product Width: 0.94" (24 mm)
  • Range: Full
  • Resolution: 2048
  • Telemetry: Yes

What’s In The Box

  • (1) Spektrum AR631 AS3X Telemetry Receiver
  • (1) Product Manual

Needed To Complete

  • Spektrum telemetry-capable transmitter

Introduction

The Spektrum AR631 AS3X Telemetry Receiver is a DSM2 and DSMX capable receiver. Its compact footprint is designed to fit in a wide range of aircraft models including park flyers and larger sport models. The AR631 is a full range 6-channel receiver with built in AS3X and SAFE stabilization, which counters the effects of wind, turbulence and torque using 3-axis MEMS gyro and exclusive flight control software tuned by expert RC pilots. There is no delay in control response or limits on control throws. You'll simply feel like you're flying an expertly tuned model that does exactly what you want.

Features

  • 230mm Antenna for more versatile installation options
  • Built in AS3X Stabilization System with SAFE flight envelope protection
  • AS3X and SAFE set up through forward programming directly from your Spektrum transmitter
  • Ready to use with Spektrum Smart ESC for one-wire telemetry data without the need of modules, links and wires
  • Streamlined, end-pin design in a lightweight hard-case
  • Bind button allows for easy binding and eliminates the need for bind plug
  • DSMX protocol receiver with DSM2 backwards compatibility
  • Fly-by range telemetry support
  • Standard servo connectors

Overview

The AR631 features fly-by range telemetry and a bind button that makes it easy to bind with no plugs necessary and offers both SmartSafe technology and Hold Last as well as preset failsafe types set through forward programming. A long 230mm 2.4gHz antenna, perfect for getting optimal reception when installed into tight spaces. The AR631 also features Smart Telemetry support.

With Smart Technology the normal servo connector delivers the throttle signal to the ESC, plus the ESC can send telemetry data like voltage and current back to the receiver. The AR631 receiver throttle port (Channel 1 port only) will automatically detect when a Smart compatible ESC is connected. ESCs with Smart and IC series connectors can also pass along battery data from compatible Spektrum Smart batteries. Spektrum Avian™ ESCs are compatible with the AR631 receiver for Smart Technology features.

For Smart to function you must have a Smart ESC paired with a Smart telemetry receiver, and a Spektrum DSMX transmitter with telemetry. An update for your transmitter may be required for Smart features. See the Spektrum website to register and update your transmitter. If a standard ESC or servo is plugged into the throttle port on the AR631 receiver, the throttle port will operate normally (PWM signal) like any conventional RC system.

AR637T Setup Series

 

AS3X® Technology

Exclusive Spektrum™ AS3X® technology enhances flight stability by countering the effects of wind, turbulence, and other outside forces to help your aircraft fly smoothly and with precision. You'll feel like you're piloting an expertly tuned model that performs exactly as you want.

 

SAFE® Technology

SAFE® (Sensor Assisted Flight Envelope) technology flight modes help pilots avoid over-controlling their models. SAFE uses AS3X to deliver normal flight performance, but with limited bank and pitch angles to prevent the aircraft from getting in extreme attitudes.

 

Long 230mm 2.4GHz Antenna

The AR631 features an extra-long 230mm 2.4ghz antenna (approximately 9 inches), specifically engineered for use in tight installations. When installing your receiver into an aircraft where there is less then ideal space away from batteries and other devices, a long antenna is key. This allows users to install the receiver in tight spaces and isolate the antenna for optimal reception and link quality. When positioning your antenna, it is best to have it at least 75mm ( approximately 3 inches) away from batteries, electronic speed controls (ESC), ignition systems, and other electronic devices. Use the integrated flight log telemetry to perform a through range test to better evaluate your setup.

 

Forward Programming

You can configure the AR631 receiver wirelessly, directly from any compatible Spektrum™ transmitter, through the Forward Programming menu. No separate computer or mobile device is needed for setup and adjustments.

 

  Smart Telemetry

To enjoy the full benefits of Smart™ technology, use the AR631 receiver with a Smart ESC and telemetry capable Spektrum DSMX® transmitter. The AR631 features fly-by telemetry and will provide vital telemetry data such as current, voltage, temperature and RPM is sent directly to your transmitter. The AR631 is not compatible with Spektrum telemetry sensors. For more information on Smart Technology please visit our Spektrum Smart Technology page.

 

AR631 DSMX 6-Channel AS3X And SAFE Receiver Specfications:

  • Antenna Length: 9" (229 mm)
  • Application: Air
  • Band: 2.4GHz
  • Bind Method: Bind Button
  • Channels: 6
  • Data Port: Yes
  • Flight Log Compatible: Yes
  • Input Voltage: 3.5 - 9V
  • Modulation: DSMX
  • Product Height: 0.55" (14 mm)
  • Product Length: 1.53" (39 mm)
  • Product Weight: 0.28oz (8g)
  • Product Width: 0.94" (24 mm)
  • Range: Full
  • Resolution: 2048
  • Telemetry: Yes

In The Box

  • (1) Spektrum AR631 AS3X Telemetry Receiver
  • (1) Product Manual

Needed to Complete

  • Spektrum telemetry capable transmitter


Key Info:
  • Brand: Spektrum
  • Part No: SPMAR631
  • Barcode: 605482762578
  • Frequency: 2.4Ghz
  • Channels: 6 Channel
  • Fitment: Option Part
  • Extra Features:
    • Stability System
    • Telemetry Capable
  • Fitment: Standard Part

Additional Categories:

Standard Shipping

£3.95 to most of the UK

Express Shipping

£6.95 to most of the UK

Worldwide Shipping

Available at checkout

Reviews
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Questions & Answers
Real questions from real customers. Why not ask your own?
Can AR631 be fitted to any model plane?
Neil / 8th August 2023

Yes you can fit this to any plane 

Si @ Wheelspin Models
Does this rx have altitude & vario?
Martin Haywood / 16th December 2022

This has AS3X & SAFE which is spektrums equivalent.

Steve @ Wheelspin Models
Is this Receiver work with Spectrum Dx8 (old version) and non-spectrum ESC? I'm looking for Safe technology use and no telemetry needed.
Akd / 28th August 2021

It'll work fine with non-spektrum ESC's yes.

It'll bind with any Spektrum radio with a DSMX logo (it won't work with the now quite old DSM2 systems)

Ben @ Wheelspin Models
Hi, will this work with my DX9 spectrum transmitter? Thanks
Michael / 16th May 2021

Yes, that should work fine assuming your DX9 has a DSMX logo

Ben @ Wheelspin Models
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