JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

Spektrum AR631 6 Channel AS3X & SA (Spektrum AR631 | SPMAR631)
Due to the impact of the COVID-19/Corona virus, there my be delays in the shipping estimates shown on our site.

We appreciate your understanding and support during these uncertain times.

Top Seller

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

Be the first to review this product. (Write Review)

Shipping: In Stock For Shipping
Store Pickup:

South Jordan, UT
Available Now!

List Price:  $94.99
Price:  $84.99
You Save:  $10 (11%)

This item will earn you 85 reward point(s).
85 points = $1.70 off your next order. Learn More

Updated on Jun 27, 2022 05:40:49 PM

AR631 6 Channel AS3X & SA...

.mediaFeature [cushioning:2px 0;]
.safeTech [background:#6f92a5;float:left;padding:20px 0;font-size: 17]
.safeTech, .safeTech h4 [color:#fff;]

.aligncenter [
text-align: center;

The Spektrum AR631 AS3X Telemetry Receiver is a DSM2 and DSMX capable receiver. Its compact footprint is developed to suit a vast array of aircraft models consisting of park flyers and bigger sport models. The AR631 is a full variety 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 application tuned by expert RC pilots. There is no delay in control reaction or limits on control throws. You'll just seem like you're flying a skillfully tuned model that does precisely what you want.


230mm Antenna for more flexible setup alternatives

Built in AS3X Stabilization System with SAFE flight envelope defense

AS3X and SAFE set up through forward configuring directly from your Spektrum transmitter

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

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

Bind button permits easy binding and gets rid of the requirement for bind plug

DSMX protocol receiver with DSM2 in reverse compatibility

Fly-by variety telemetry support

Basic servo adapters

*Please note – Utilizing this receiver in turbine powered aircraft models is not suggested

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 innovation and Hold Last as well as preset failsafe types set through forward programs. A long 230mm 2.4gHz antenna, ideal for getting ideal reception when installed into tight spaces. The AR631 likewise features Smart Telemetry support.
With Smart Technology the normal servo adapter provides the throttle signal to the ESC, plus the ESC can send telemetry data like voltage and existing back to the receiver. The AR631 receiver throttle port (Channel 1 port just) will instantly identify when a Smart compatible ESC is linked. ESCs with Smart and IC series adapters can likewise 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 operate you need to have a Smart ESC coupled with a Smart telemetry receiver, and a Spektrum DSMX transmitter with telemetry. An update for your transmitter may be required for Smart functions. 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 operate typically (PWM signal) like any conventional RC system.

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

AR637T Setup Series


AS3X Technology

AS3X® Technology
Unique Spektrum™ AS3X® innovation boosts flight stability by countering the effects of wind, turbulence, and other outside forces to assist your aircraft fly efficiently and with accuracy. You'll seem like you're piloting a skillfully tuned model that carries out precisely as you desire.

SAFE Technology

SAFE® Technology
SAFE® (Sensing unit Assisted Flight Envelope) innovation flight modes assist pilots prevent over-controlling their models. SAFE uses AS3X to provide normal flight performance, however with minimal bank and pitch angles to prevent the aircraft from getting in severe mindsets.

Long 230mm 2.4GHz Antenna

Long 230mm 2.4GHz Antenna
The AR631 features an extra-long 230mm 2.4ghz antenna (around 9 inches), particularly engineered for usage in tight setups. When installing your receiver into an airplane where there is less then perfect area far from batteries and other devices, a long antenna is crucial. This enables users to set up the receiver in tight spaces and isolate the antenna for ideal reception and link quality. When placing your antenna, it is best to have it a minimum of 75mm ( around 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 evaluate your setup.

Forward Configuring

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 phone is required for setup and changes.


Smart Telemetry

Smart Telemetry
To delight in the complete advantages of Smart™ innovation, use the AR631 receiver with a Smart ESC and telemetry capable Spektrum DSMX® transmitter. The AR631 features fly-by telemetry and will supply vital telemetry data such as existing, voltage, temperature level and RPM is sent directly to your transmitter. The AR631 is not compatible with Spektrum telemetry sensing units. For additional information on Smart Technology please visit our Spektrum Smart Technology page.



Antenna Length: 9" (229 mm)

Application: Air

Band: 2.4GHz

Bind Technique: Bind Button

Channels: 6

Information 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)

Variety: Complete

Resolution: 2048

Telemetry: Yes

Frequently Bought Together

Spektrum AR631 6 Channel AS3X & SA
Spektrum 3200mAh 4S 14.8V 50C Smart LiPo Battery; IC3
This Item: Spektrum AR631 6 Channel AS3X & SA
Spektrum 3200mAh 4S 14.8V 50C Smart LiPo Battery; IC3

Total Price: $149.98

Add Both To Cart
Visual Parts Finder