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Spektrum AR631 6 Channel AS3X & SA (Spektrum AR631 | SPMAR631)

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Model: Spektrum AR631
Dist. #: SPMAR631   SKU: SPMAR631

Customer Reviews: Rated 5.0 stars 5 of 5 (1 Review)

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List Price:  $94.99
Price:  $84.99
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Updated on Jun 6, 2025 03:40:56 PM

AR631 6 Channel AS3X & SA...


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Introduction
The Spektrum AR631 AS3X Telemetry Receiver is a DSM2 and DSMX capable receiver. Its compact footprint is created to suit a wide range of aircraft designs consisting of park flyers and larger sport designs. The AR631 is a full variety 6-channel receiver with built in AS3X and SAFE stabilization, which counters the results of wind, turbulence and torque using 3-axis MEMS gyro and exclusive flight control software tuned by professional RC pilots. There is no hold-up in control action or limitations on control tosses. You'll just feel like you're flying an expertly tuned model that does precisely what you want.





Features

230mm Antenna for more versatile installation options

Built in AS3X Stabilization System with SAFE flight envelope protection

AS3X and SAFE established through forward setting straight from your Spektrum transmitter

Prepared to utilize with Spektrum Smart ESC for one-wire telemetry data without the requirement of modules, links and wires

Structured, top-pin design in a lightweight hard-case

Bind button allows for easy binding and eliminates the requirement for bind plug

DSMX procedure receiver with DSM2 backwards compatibility

Fly-by variety telemetry support

Basic servo adapters





*Please keep in mind – Using this receiver in turbine powered aircraft designs is not suggested





Overview
The AR631 features fly-by variety telemetry and a bind button that makes it easy to bind with no plugs essential and offers both SmartSafe technology and Hold Last as well as preset failsafe types set through forward programming. A long 230mm 2.4gHz antenna, best for getting ideal reception when installed into tight spaces. The AR631 also features Smart Telemetry support.
With Smart Technology the typical servo adapter 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 just) will instantly spot when a Smart suitable ESC is linked. ESCs with Smart and IC series adapters can also pass along battery data from suitable Spektrum Smart batteries. Spektrum Bird™ ESCs are compatible with the AR631 receiver for Smart Technology features.
For Smart to function you should have a Smart ESC paired with a Smart telemetry receiver, and a Spektrum DSMX transmitter with telemetry. An update for your transmitter might be needed for Smart features. See the Spektrum website to sign up and upgrade your transmitter. If a standard ESC or servo is plugged into the throttle port on the AR631 receiver, the throttle port will run typically (PWM signal) like any traditional RC system.

Please Note: These transmitters do not support Forward Setting devices: DX6i, DX6G2 (EU Variation), DX7, DX7S, DX7SE, DX7G2 (EU Variation), DX8, Non-computer transmitters





AR637T Setup Series

 




AS3X Technology

AS3X® Technology
Exclusive Spektrum™ AS3X® technology enhances flight stability by countering the results of wind, turbulence, and other outdoors forces to assist your aircraft fly efficiently and with accuracy. You'll feel like you're piloting an expertly tuned model that performs precisely as you want.
 

SAFE Technology

SAFE® Technology
SAFE® (Sensor Assisted Flight Envelope) technology flight modes assist pilots avoid over-controlling their designs. SAFE uses AS3X to deliver typical flight efficiency, but with restricted bank and pitch angles to prevent the aircraft from getting in extreme attitudes.
 





Long 230mm 2.4GHz Antenna

Long 230mm 2.4GHz Antenna
The AR631 features an extra-long 230mm 2.4ghz antenna (roughly 9 inches), particularly engineered for use in tight installations. When installing your receiver into an aircraft where there is less then ideal space far from batteries and other devices, a long antenna is essential. This permits users to install the receiver in tight spaces and isolate the antenna for ideal reception and link quality. When positioning your antenna, it is best to have it a minimum of 75mm ( roughly 3 inches) far from batteries, electronic speed controls (ESC), ignition systems, and other electronic devices. Use the incorporated flight log telemetry to perform a through variety test to much better assess your setup.
 

Forward Setting

Forward Programming
You can configure the AR631 receiver wirelessly, straight from any suitable Spektrum™ transmitter, through the Forward Shows menu. No different computer or mobile phone is required for setup and changes.
 





 

Smart Telemetry

Smart Telemetry
To delight in the full benefits of Smart™ technology, utilize 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 level and RPM is sent straight to your transmitter. The AR631 is not suitable with Spektrum telemetry sensors. To find out more on Smart Technology please visit our Spektrum Smart Technology page.

 



Requirements

Antenna Length: 9" (229 mm)

Application: Air

Band: 2.4GHz

Bind Approach: Bind Button

Channels: 6

Data Port: Yes

Flight Log Compatible: Yes

Input Voltage: 3.5 - 9V

Modulation: DSMX

Item Height: 0.55" (14 mm)

Item Length: 1.53" (39 mm)

Item Weight: 0.28oz (8g)

Item Width: 0.94" (24 mm)

Range: Full

Resolution: 2048

Telemetry: Yes

Frequently Bought Together

Spektrum AR631 6 Channel AS3X & SA
+
Spektrum 3200mAh 4S 14.8V 50C Smart LiPo Battery; IC3
+
Spektrum AR620 6 Channel Sport Receiver
This Item: Spektrum AR631 6 Channel AS3X & SA
$84.99
Spektrum 3200mAh 4S 14.8V 50C Smart LiPo Battery; IC3
$71.99
Spektrum AR620 6 Channel Sport Receiver
$62.99

Total Price: $219.97

Add All Three To Cart
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Rated 5 stars Always ready to help.
By Dan C on January 3, 2023   Verified Purchase

You Guys are great always have a great variety of everything I need and are always ready to help. Keep up the great work.

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