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Spektrum (SPM) Logo

Spektrum DSMX SRXL2 Serial Receiver with Telemetry

Spektrum (SPM) Logo Spektrum DSMX SRXL2 Serial Receiver with Telemetry
This is a Spektrum part #SPM4651T, DSMX SRXL2 Serial Receiver with Telemetry with more functionality, longer control and telemetry link range

Availability: Please call for availability
We might still have one laying around..

* Some of the items on this site are still being inventoried if you want to confirm the item is in stock please contact us.


The SPM4651T uses our feature-rich SRXL2 protocol to give pilots a blazing fast serial data connection with up to 20 channels. SRXL2 is a powerful and open source communication protocol developed by Spektrum. It greatly improves bi-directional communication between the radio system and flight controller for added telemetry functionality and flight control configuration right from the pilots Spektrum Transmitter*, all over one signal wire.

The SPM4651T is small, lightweight, and ideal for Heli, Multi-Rotor and FPV Enthusiasts. It also features a simple bind button so pilots no longer need to carry a separate receiver or bind plug to bind. Dual antennas provide receiver diversity for solid signal and the long coax antennas help to provide maximum 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 Telemetry Receiver provides remarkable range and interference free performance.


  • SRXL2 Technology
  • Low Noise Amplifier - Helps Reduce Interference and Produce Extended Control Link Range
  • Small, Lightweight and Perfect for Heli, Multi-Rotor and FPV Enthusiasts
  • Wide Voltage Input Range (3.3v -8.4v)
  • Full Range Telemetry
  • Dual Diversity Antennas
  • Bind Button for Easy Binding - No Plug Required


Antenna Length: 3.9" (100mm)
Band: 2.4GHz
Bind Method: Bind Button
Channels: 20
Failsafe: No
Input Voltage: 3.3 - 8.4V
Modulation: DSMX
Product Height: 0.31" (7.8mm)
Product Weight: 0.14oz (4g)
Product Width: 0.71" (18mm)
Programmable: Yes
Range: Full
Rev Limiter: No
Technology: Smart Technology
Telemetry: Integrated
Water-Resistant: No

Product Specifications

Part NumberSPM4651T
Antenna Length3.9" (100mm)
Bind MethodBind Button
Input Voltage3.3 - 8.4V
Product Height0.31" (7.8mm)
Product Weight0.14oz (4g)
Product Width0.71" (18mm)
Rev LimiterNo
TechnologySmart Technology
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