Spektrum SRXL2/DSMX Serial Micro receiver with telemetry

The SPM4650 DSMX SRXL2 serial micro receiver takes the original SPM4648 receiver and adds more value, functionality and telemetry, while reducing the size and weight of the already micro Spektrum serial receiver. The SPM4650 uses our feature-rich SRXL2 protocol to provide pilots with an ultra-fast serial data connection with up to 20 channels. SRXL2 is a powerful communication protocol that enhances two-way communication between the radio system and the flight controller for additional telemetry functionality and flight control configuration directly from the Spektrum transmitter* to the pilots, all on a single signal wire.

The SPM4650 is small, lightweight and customizable, providing an excellent receiver for even the smallest applications. It also features a single link button so that pilots no longer need to carry a separate receiver or link plug to connect. Dual antennas offer receiver diversity for a strong signal, and long coaxial antennas help provide maximum signal strength in all orientations for difficult installations where carbon fiber, metal and batteries protect the antenna. And with Spektrum DSMX 2.4 GHz RF protocol, the Spektrum SRXL2 series micro receiver offers interference-free range and performance

SRXL2 Technology
The next iteration of Spektrum SRXL* technology is here! SRXL2 technology is a communication protocol between receivers and devices such as multi-rotor flight controllers, Helicopter Flybarless units and other receivers. SRXL2 is faster, more data-rich and more secure. It also provides support for two-way telemetry, giving users more access to telemetry features from their devices and even allowing setup and configuration directly from their transmitter. No computer or smart device required! ** Want to know more about SRXL2? Visit the SRXL2 homepage.

* Please note that SRXL2 is not backwards compatible with the SRXL protocol.
** SRXL2 support updates are required for your device to use the SPM4650, visit www.srxl2.com for more details and download links

Small, Lightweight and Perfect for the DIYer Small, Lightweight and Perfect for the DIYer
Weighing only 1.4 grams and smaller than any previous Spektrum serial receiver, the SPM4650 is ready to be installed in most types of multirotor and helicopter construction, regardless of space constraints. The receiver comes with the plug uninstalled for enthusiasts looking to reduce weight and bulk. Simply attach the wires directly to the PCB or mount the connector and plug the included SPM4650 wire into a compatible flight controller.

Wide voltage input range Wide voltage input range
With an operating voltage range of 3.3V to 8.4V, users will no longer be forced to know which devices they can use to operate their serial receiver now that the limited voltage range is eliminated.

Fly-By Telemetry Fly-By Telemetry
Fly-By telemetry is a short-range telemetry signal that is perfect for checking telemetry before and after a flight. And with SRXL2 technology, users will get even more telemetry data and support for transmitter-to-device programming via transfer programming, VTX configuration and/or text generation programming.

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

Link button installed for easy linking
No link plug? No problem! The SPM4650 is the most convenient Spektrum serial receiver at the moment, just press the link button at any time, before or after powering up, and the SPM4650 is in link mode. And like other Spektrum serial receivers, users can also connect using a supported flight controller and computer, but there's no need to reboot!