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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 27, 2025 12:24:00 PM

DSMX SRXL2 Serial Micro Receiver...


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Features

SRXL2 Innovation

Little, Lightweight and Perfect for the Do It Yourself Enthusiast

Wide Voltage Input Range

Fly-By Telemetry

Dual Diversity Antennas

Bind Button set up for Easy Binding





Overview
The SPM4650 DSMX SRXL2 Serial Micro Receiver takes the original SPM4648 receiver and includes more worth, functionality and fly-by telemetry, while reducing 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 quickly serial information connection with up to 20 channels. SRXL2 is an effective interaction protocol that improves bi-directional interaction between the radio system and flight controller for included telemetry functionality and flight control configuration right from the pilots Spektrum Transmitter*, all over one signal wire.
The SPM4650 is small, lightweight, and customizable, offering an exceptional receiver for even the smallest of applications. It also includes an easy bind button so pilots no longer require to carry a different receiver or bind plug to bind. Dual antennas provide receiver diversity for solid signal and the long coax antennas assist to provide optimal signal strength in all orientations for difficult installations where carbon fiber, metal and batteries protect the antenna. And with Spektrum DSMX 2.4GHz RF protocol the Spektrum SRXL2 Serial Micro Receiver offers amazing range and interference totally free 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 an interaction protocol between receivers and gadgets such as Multi rotor flight controllers, Helicopter Flybarless systems and other receivers. SRXL2 is faster, more information abundant, and more safe. It also permits bi-directional telemetry assistance, offering users more access to telemetry features from their gadgets and even permitting setup and configuration right from their transmitter. No computer system or wise gadget needed! ** Want to find out more about SRXL2? Visit the SRXL2 Homepage.
* Please note that SRXL2 is not backwards suitable with SRXL protocol.
** SRXL2 assistance updates are needed for your gadget to use the SPM4650, visit www.srxl2.com for information and download links
 

Little, Lightweight, and Perfect for the Do It Yourself Enthusiast

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 develops – no matter the space constraints. The receiver comes with the plug uninstalled for the enthusiasts wanting to reduce weight and mess. Simply connect leads directly to the PCB or mount the adapter and plug the consisted of wire from the SPM4650 into a suitable flight controller.
 





Wide Voltage Input Range

Wide Voltage Input Range
With an operating voltage range between 3.3v to 8.4v, users will no longer be constrained to which gadgets they can use to operate their serial receiver now that the minimal voltage range is removed.
 

Fly-By Telemetry

Fly-By Telemetry
Fly-By Telemetry is a low range telemetry signal that is ideal for examining telemetry prior to and after a flight. And with SRXL2 Innovation users will get back at more telemetry information and transmitter to gadget shows assistance via Forward Programs, VTX Setup, and/or Text Gen Programs.
 





Dual Diversity Antennas
The SPM4650 utilizes an innovative antenna diversity system that offers ideal range, RF performance, and polarization. All supported by 2 long coaxial antennas that are ideal for FPV, Multirotor and Heli pilots with metal and carbon fiber plentiful designs.
 

Bind Button set up for Easy Binding
No bind plug? No Problem! The SPM4650 is the most convenient to bind Spektrum serial receiver yet, merely 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, and now there is no need to power cycle!
 



Specs

Antenna Length: 3.9" (100mm)

Band: 2404 - 2476 MHz

Bind Approach: Bind Button

Channels: 18

Information Port: Yes

Failsafe: No

Flight Log Compatible: No

Guv: No

Height: 0.20" (5mm)

Input Voltage: 3.3 - 8.4V

Length: 0.67" (17mm)

Modulation: DSMX

Number of Receivers: One

Range: Full

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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