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Spektrum DSMX SRXL2 Serial Micro Receiver (Spektrum 4650 | SPM4650)

Model: Spektrum 4650
Dist. #: SPM4650   SKU: SPM4650

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

Shipping: In Stock For Shipping
Store Pickup:

South Jordan, UT
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Price:  $39.99

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Updated on May 14, 2025 08:32:35 PM

DSMX SRXL2 Serial Micro Receiver...


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Features

SRXL2 Innovation

Little, Light-weight and Perfect for the Do It Yourself Lover

Wide Voltage Input Variety

Fly-By Telemetry

Double Diversity Antennas

Bind Button set up for Easy Binding





Overview
The SPM4650 DSMX SRXL2 Serial Micro Receiver takes the initial SPM4648 receiver and includes more value, performance and fly-by telemetry, while decreasing the size and weight of the already micro sized Spektrum serial receiver. The SPM4650 uses our feature-rich SRXL2 protocol to give pilots a blazing fast serial data connection with approximately 20 channels. SRXL2 is an effective communication protocol that enhances bi-directional communication between the radio system and flight controller for added telemetry performance and flight control setup right from the pilots Spektrum Transmitter*, all over one signal wire.
The SPM4650 is small, lightweight, and personalized, providing an excellent receiver for even the smallest of applications. It also features an easy bind button so pilots no longer require to carry a different receiver or bind plug to bind. Double antennas supply receiver diversity for strong signal and the long coax antennas assist to supply optimal signal strength in all orientations for challenging installations where carbon fiber, metal and batteries shield the antenna. And with Spektrum DSMX 2.4GHz RF protocol the Spektrum SRXL2 Serial Micro Receiver provides amazing variety and interference complimentary performance.





What's in the Box?

(1) SPM4650 Receiver

(2) U.FL Antenna

(1) 6” Receiver Extension Cable Television

(1) Item Handbook

Clear Heat Shrink Wrap







SRXL2 Innovation

SRXL2 Technology
The next model of Spektrum SRXL Innovation * is here! SRXL2 Innovation is a communication protocol between receivers and devices such as Multi rotor flight controllers, Helicopter Flybarless systems and other receivers. SRXL2 is faster, more data abundant, and more protected. It also allows for bi-directional telemetry support, offering users more access to telemetry functions from their devices and even allowing setup and setup right from their transmitter. No computer or clever gadget required! ** Want to find out more about SRXL2? Go To the SRXL2 Homepage.
* Please keep in mind that SRXL2 is not backward compatible with SRXL protocol.
** SRXL2 support updates are required for your gadget to utilize the SPM4650, go to www.srxl2.com for details and download links
 

Little, Light-weight, and Perfect for the Do It Yourself Lover

Small, Lightweight, and Perfect for the DIY Enthusiast
Weighing simply 1.4 grams and smaller than any previous Spektrum serial receiver, the SPM4650 is ready to be set up in the majority of types of multirotor and heli constructs – no matter the area constraints. The receiver comes with the plug uninstalled for the enthusiasts seeking to decrease weight and clutter. Simply connect leads directly to the PCB or mount the connector and plug the included wire from the SPM4650 into a suitable flight controller.
 





Wide Voltage Input Variety

Wide Voltage Input Range
With an operating voltage variety between 3.3v to 8.4v, users will no longer be constrained to which devices they can utilize to run their serial receiver now that the limited voltage variety is gotten rid of.
 

Fly-By Telemetry

Fly-By Telemetry
Fly-By Telemetry is a low variety telemetry signal that is best for examining telemetry prior to and after a flight. And with SRXL2 Innovation users will get even more telemetry data and transmitter to gadget programming support by means of Forward Programs, VTX Setup, and/or Text Gen Programs.
 





Double Diversity Antennas
The SPM4650 utilizes an advanced antenna diversity system that provides optimal variety, RF performance, and polarization. All supported by 2 long coaxial antennas that are best for FPV, Multirotor and Heli pilots with metal and carbon fiber abundant models.
 

Bind Button set up for Easy Binding
No bind plug? No Problem! The SPM4650 is the most practical to bind Spektrum serial receiver yet, simply press the bind button at any time, prior to or after power is used, and the SPM4650 is in bind mode. And like other Spektrum serial receivers, users can also bind utilizing a supported flight controller and computer, but now there is no requirement to power cycle!
 



Specs

Antenna Length: 3.9" (100mm)

Band: 2404 - 2476 MHz

Bind Technique: Bind Button

Channels: 18

Information Port: Yes

Failsafe: No

Flight Log Compatible: No

Governor: No

Height: 0.20" (5mm)

Input Voltage: 3.3 - 8.4V

Length: 0.67" (17mm)

Modulation: DSMX

Number of Receivers: One

Variety: Complete

Telemetry: No

Type: SRXL V2

Waterproof: No

Weight: 0.05oz (1.4g) consisting of antennas

Width: 0.51" (13mm)
Rated 5.0 stars
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Rated 5 stars Best Spektrum receiver for fpv
By Mike J on March 9, 2021   Verified Purchase

Some soldering skills needed Works great

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