SRXL2 DSMX Remote Serial Telemetry Receiver
The Spektrum SRXL2 DSMX Remote Serial Telemetry Receiver (SPM4651T) is a micro-sized receiver offering lightning-fast serial communication, full-range telemetry, and robust signal stability, making it ideal for helicopters, FPV, and multirotor applications.
Features
- SRXL2 protocol: high-speed, bidirectional serial communication up to 20 channels
- Low-noise amplifier for extended control and telemetry link range
- Wide input voltage: 3.3 V – 8.4 V
- Full-range telemetry support
- Dual diversity antennas for optimal reception in complex installs
- Compact, lightweight build—perfect for tight or weight-sensitive spaces
- Bind button—no plug needed
What's Included
- SPM4651T SRXL2 Receiver
- Product Manual
Needed to Complete
- Spektrum DSMX transmitter and compatible flight controller with SRXL2 support
Specifications
- Channels: Up to 20 via SRXL2
- Modulation: DSMX 2.4 GHz
- Input Voltage: 3.3 V – 8.4 V
- Telemetry: Full range
- Serial Output: SRXL2
- Antenna Length: ~3.9″ (100 mm) dual diversity
- Dimensions (L × W × H): 28.2 × 17.3 × 6.6 mm (1.11 × 0.68 × 0.25 in)
- Weight: ~0.14 oz (4 g)
- Failsafe: Not supported
- Forward Programming: Not supported

Description
The Spektrum SRXL2 DSMX Remote Serial Telemetry Receiver (SPM4651T) is a micro-sized receiver offering lightning-fast serial communication, full-range telemetry, and robust signal stability, making it ideal for helicopters, FPV, and multirotor applications.
Features
- SRXL2 protocol: high-speed, bidirectional serial communication up to 20 channels
- Low-noise amplifier for extended control and telemetry link range
- Wide input voltage: 3.3 V – 8.4 V
- Full-range telemetry support
- Dual diversity antennas for optimal reception in complex installs
- Compact, lightweight build—perfect for tight or weight-sensitive spaces
- Bind button—no plug needed
What's Included
- SPM4651T SRXL2 Receiver
- Product Manual
Needed to Complete
- Spektrum DSMX transmitter and compatible flight controller with SRXL2 support
Specifications
- Channels: Up to 20 via SRXL2
- Modulation: DSMX 2.4 GHz
- Input Voltage: 3.3 V – 8.4 V
- Telemetry: Full range
- Serial Output: SRXL2
- Antenna Length: ~3.9″ (100 mm) dual diversity
- Dimensions (L × W × H): 28.2 × 17.3 × 6.6 mm (1.11 × 0.68 × 0.25 in)
- Weight: ~0.14 oz (4 g)
- Failsafe: Not supported
- Forward Programming: Not supported















