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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 7, 2025 07:17:26 PM

DSMX SRXL2 Serial Micro Receiver...


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Features

SRXL2 Technology

Small, Lightweight and Perfect for the Do It Yourself Lover

Wide Voltage Input Range

Fly-By Telemetry

Double Variety Antennas

Bind Button set up for Easy Binding





Overview
The SPM4650 DSMX SRXL2 Serial Micro Receiver takes the original SPM4648 receiver and includes more value, 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 protocol to give pilots a blazing quick serial information connection with as much as 20 channels. SRXL2 is a powerful interaction protocol that improves bi-directional interaction 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 little, lightweight, and personalized, supplying an excellent receiver for even the smallest of applications. It likewise includes an easy bind button so pilots no longer need to bring a separate receiver or bind plug to bind. Double antennas supply receiver diversity for strong signal and the long coax antennas help to supply optimal signal strength in all orientations for challenging setups where carbon fiber, metal and batteries shield the antenna. And with Spektrum DSMX 2.4GHz RF protocol the Spektrum SRXL2 Serial Micro Receiver provides exceptional range and interference free performance.





What's in the Box?

(1) SPM4650 Receiver

(2) U.FL Antenna

(1) 6” Receiver Extension Cable

(1) Item Manual

Clear Heat Shrink Wrap







SRXL2 Technology

SRXL2 Technology
The next model of Spektrum SRXL Technology * is here! SRXL2 Technology is an interaction protocol between receivers and devices such as Multi rotor flight controllers, Helicopter Flybarless units and other receivers. SRXL2 is faster, more information rich, and more safe and secure. It likewise enables bi-directional telemetry assistance, providing users more access to telemetry functions from their devices and even permitting setup and setup right from their transmitter. No computer or clever device needed! ** Want to discover more about SRXL2? Visit the SRXL2 Homepage.
* Please keep in mind that SRXL2 is not backward compatible with SRXL protocol.
** SRXL2 assistance updates are needed for your device to utilize the SPM4650, see www.srxl2.com for information and download links
 

Small, Lightweight, and Perfect for the Do It Yourself 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 ready to be set up in the majority of types of multirotor and heli constructs – no matter the space restraints. The receiver features the plug uninstalled for the lovers looking to reduce weight and mess. Simply attach leads directly to the PCB or install the connector and plug the included 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 devices they can utilize 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 best for checking telemetry before and after a flight. And with SRXL2 Technology users will get back at more telemetry information and transmitter to device programming assistance through Forward Shows, VTX Setup, and/or Text Gen Shows.
 





Double Variety Antennas
The SPM4650 uses an advanced antenna diversity system that provides optimum range, 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 hassle-free to bind Spektrum serial receiver yet, merely press the bind button at any time, before or after power is used, and the SPM4650 remains in bind mode. And like other Spektrum serial receivers, users can likewise bind utilizing a supported flight controller and computer, today there is no requirement to power cycle!
 



Requirements

Antenna Length: 3.9" (100mm)

Band: 2404 - 2476 MHz

Bind Approach: Bind Button

Channels: 18

Data 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

Variety of Receivers: One

Range: 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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