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)

Top Seller

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

Customer Reviews: Rated 5.0 stars 5 of 5 (1 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 Apr 16, 2024 10:15:06 AM

AR631 6 Channel AS3X & SA...

.mediaFeature [padding: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 created to suit a wide variety of airplane designs consisting of park flyers and larger sport designs. The AR631 is a complete variety 6-channel receiver with built in AS3X and SAFE stabilization, which counters the impacts of wind, turbulence and torque using 3-axis MEMS gyro and special flight control software tuned by professional RC pilots. There is no delay in control response or limitations on control throws. You'll simply seem like you're flying a skillfully tuned design that does precisely what you want.


230mm Antenna for more versatile installation options

Built in AS3X Stabilization System with SAFE flight envelope defense

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

All set to utilize with Spektrum Smart ESC for one-wire telemetry information without the need of modules, links and wires

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

Bind button permits simple binding and removes the need for bind plug

DSMX protocol receiver with DSM2 in reverse compatibility

Fly-by variety telemetry support

Basic servo connectors

*Please keep in mind – Utilizing this receiver in turbine powered airplane designs is not suggested

The AR631 features fly-by variety telemetry and a bind button that makes it simple to bind without any plugs required and uses both SmartSafe innovation and Hold Last in addition to predetermined failsafe types set through forward shows. A long 230mm 2.4gHz antenna, ideal for getting optimum reception when set up into tight spaces. The AR631 likewise features Smart Telemetry support.
With Smart Innovation the normal servo port delivers the throttle signal to the ESC, plus the ESC can send out telemetry information like voltage and present back to the receiver. The AR631 receiver throttle port (Channel 1 port only) will immediately detect when a Smart compatible ESC is linked. ESCs with Smart and IC series connectors can likewise pass along battery information from compatible Spektrum Smart batteries. Spektrum Bird™ ESCs work with the AR631 receiver for Smart Innovation features.
For Smart to operate you must have a Smart ESC paired with a Smart telemetry receiver, and a Spektrum DSMX transmitter with telemetry. An update for your transmitter might be required for Smart functions. See the Spektrum site to register and update your transmitter. If a basic ESC or servo is plugged into the throttle port on the AR631 receiver, the throttle port will run generally (PWM signal) like any standard RC system.

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

AR637T Setup Series


AS3X Innovation

AS3X® Technology
Special Spektrum™ AS3X® innovation boosts flight stability by countering the impacts of wind, turbulence, and other outside forces to help your airplane fly efficiently and with precision. You'll seem like you're piloting a skillfully tuned design that carries out precisely as you want.

SAFE Innovation

SAFE® Technology
SAFE® (Sensing unit Assisted Flight Envelope) innovation flight modes help pilots prevent over-controlling their designs. SAFE usages AS3X to deliver normal flight performance, but with minimal bank and pitch angles to avoid the airplane 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 (approximately 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 gadgets, a long antenna is crucial. This allows users to set up the receiver in tight spaces and isolate the antenna for optimum reception and link quality. When positioning your antenna, it is best to have it a minimum of 75mm ( approximately 3 inches) far from batteries, electronic speed controls (ESC), ignition systems, and other electronic gadgets. Utilize the integrated flight log telemetry to perform a through variety test to better assess your setup.

Forward Configuring

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


Smart Telemetry

Smart Telemetry
To take pleasure in the complete advantages of Smart™ innovation, utilize the AR631 receiver with a Smart ESC and telemetry capable Spektrum DSMX® transmitter. The AR631 features fly-by telemetry and will offer vital telemetry information such as present, voltage, temperature level and RPM is sent out directly to your transmitter. The AR631 is not compatible with Spektrum telemetry sensors. To find out more on Smart Innovation please visit our Spektrum Smart Innovation page.



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: Complete

Resolution: 2048

Telemetry: Yes

Frequently Bought Together

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

Total Price: $199.97

Add All Three To Cart
Rated 5.0 stars
5 out of 5 stars
5 star  
4 star  
3 star  
2 star  
1 star  

Share your thoughts with others

Write a Customer Review

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.

Was this review helpful to you?
Thank you for your feedback.

Customers who bought this product also purchased

Visual Parts Finder