Spektrum SRXL2 DSMX Radio Receiver (SPM4650 or SPM4650C)

Regular price $39.99

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The Spektrum SPM4650 and SPM4650C DSMX SRXL2 serial micro radio receivers are designed to be used with FPV drones. This receiver provides more value, functionality and fly-by telemetry while decreasing the size and weight of the already micro-sized Spektrum serial receiver.

 

Both use Spektrum's feature-rich SRXL2 protocol to give pilots a blazing-fast serial data connection with up to 20 channels. SRXL2 is a powerful communication protocol that 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.

 

For those who want the standard receiver model, get the SPM4650 or if you prefer having the connector pre-installed, the SPM4650C is for you.

 


 

SPECIFICATIONS:

  • Antenna Length: 3.9" (100mm)
  • Bind Method: Bind Button or SRXL2 Bind Command
  • Channels: 20
  • Data Port: Yes
  • Input Voltage: 3.3 - 8.4V
  • Length: 0.67" (17mm)
  • Modulation: DSMX/DSM2
  • Range: Full
  • Telemetry: Fly By
  • Water-Resistant No
  • Modulation DSMX/DSM2
  • Band 2404 - 2476 MHz
  • Weight: 0.05oz (1.4g) including antennas
  • Height: 0.20" (5mm)
  • Width: 0.51" (13mm)

HELPFUL LINKS:

 

INCLUDES:

(1) SPM4650 or SPM4650C Receiver
(2) U.FL Antenna
(1) 6” Receiver Extension Cable
(1) 4-Pin Connector
(1) Product Manual
(1) Clear Heat Shrink Wrap

 

NOTES: 

  • Betaflight 4.1 and the latest configurator supports SRXL2 so there are no CLI commands needed! For reference, see below:
    • feature -RSSI_ADC
    • feature RX_SERIAL
    • feature TELEMETRY
    • map TAER1234
    • set rssi_channel = 0
    • set serialrx_provider = SRXL2
    • set serialrx_inverted = OFF
    • set srxl2_unit_id = 1
    • set srxl2_baud_fast = ON
  • Also, this Receiver is not compatible with the following aircraft:
    • EFL9650 V-22 Osprey VTOL BNF Basic, 487mm
    • EFL9675 V-22 Osprey VTOL PNP, 487mm
    • EFL9350 Mini Convergence VTOL BNF Basic, 410mm
    • EFL9375 Mini Convergence VTOL PNP, 410mm


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