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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 Nov 28, 2025 06:27:04 PM

DSMX SRXL2 Serial Micro Receiver...


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Features

SRXL2 Innovation

Little, Light-weight and Perfect for the DIY Lover

Wide Voltage Input Variety

Fly-By Telemetry

Dual Variety Antennas

Bind Button installed for Easy Binding





Overview
The SPM4650 DSMX SRXL2 Serial Micro Receiver takes the original SPM4648 receiver and adds more worth, functionality and fly-by telemetry, while decreasing the size and weight of the already micro sized Spektrum serial receiver. The SPM4650 utilizes our feature-rich SRXL2 procedure to give pilots a blazing fast serial data connection with up to 20 channels. SRXL2 is a powerful interaction procedure that improves bi-directional interaction in between the radio system and flight controller for added telemetry functionality and flight control setup right from the pilots Spektrum Transmitter*, all over one signal wire.
The SPM4650 is small, lightweight, and personalized, supplying an outstanding receiver for even the smallest of applications. It also features an easy bind button so pilots no longer require to bring a separate receiver or bind plug to bind. Dual antennas provide receiver diversity for solid signal and the long coax antennas assist to provide maximum signal strength in all orientations for difficult installations where carbon fiber, metal and batteries shield the antenna. And with Spektrum DSMX 2.4GHz RF procedure the Spektrum SRXL2 Serial Micro Receiver supplies remarkable range and interference complimentary performance.





What's in the Box?

(1) SPM4650 Receiver

(2) U.FL Antenna

(1) 6” Receiver Extension Cable

(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 procedure in between receivers and devices such as Multi rotor flight controllers, Helicopter Flybarless units and other receivers. SRXL2 is faster, more data rich, and more safe. It also permits bi-directional telemetry support, giving users more access to telemetry functions from their devices and even permitting setup and setup right from their transmitter. No computer system or smart device required! ** Want to learn more about SRXL2? Visit the SRXL2 Homepage.
* Please note that SRXL2 is not backward compatible with SRXL procedure.
** SRXL2 support updates are required for your device to use the SPM4650, check out www.srxl2.com for information and download links
 

Little, Light-weight, and Perfect for the DIY Lover

Small, Lightweight, and Perfect for the DIY Enthusiast
Weighing simply 1.4 grams and smaller sized than any previous Spektrum serial receiver, the SPM4650 is all set to be installed in the majority of kinds of multirotor and heli constructs – no matter the space constraints. The receiver includes the plug uninstalled for the lovers looking to minimize weight and clutter. Merely attach leads straight to the PCB or mount the connector and plug the consisted of wire from the SPM4650 into a suitable flight controller.
 





Wide Voltage Input Variety

Wide Voltage Input Range
With an operating voltage range in between 3.3v to 8.4v, users will no longer be constrained to which devices they can use to operate their serial receiver now that the restricted voltage range is gotten rid of.
 

Fly-By Telemetry

Fly-By Telemetry
Fly-By Telemetry is a low range telemetry signal that is best for examining telemetry prior to and after a flight. And with SRXL2 Innovation users will get back at more telemetry data and transmitter to device shows support by means of Forward Shows, VTX Setup, and/or Text Gen Shows.
 





Dual Variety Antennas
The SPM4650 employs a sophisticated antenna diversity system that supplies ideal range, RF efficiency, and polarization. All supported by 2 long coaxial antennas that are best for FPV, Multirotor and Heli pilots with metal and carbon fiber plentiful designs.
 

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



Requirements

Antenna Length: 3.9" (100mm)

Band: 2404 - 2476 MHz

Bind Method: 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

Water-Resistant: No

Weight: 0.05oz (1.4g) including 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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