The Spektrum SPM4650 DSMX SRXL2 serial micro radio receiver is 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. The SPM4650 uses 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.
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
- Type: SRXL2
- Weight: 0.05oz (1.4g) including antennas
- Width: 0.51" (13mm)
HELPFUL LINKS:
INCLUDES:
(1) SPM4650 Receiver
(2) U.FL Antenna
(1) 6” Receiver Extension Cable
(1) 4-Pin Connector
(1) Product Manual
(1) Clear Heat Shrink Wrap
Note: Betaflight 4.1 and the latest configurator supports SRXL2 so there are no CLI commands needed! For reference however, 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