3DR Radio Telemetry Module — 433MHz or 915MHz, SiK Firmware, MAVLink, FHSS, 2KM or 5KM, for Pixhawk, PX4 & ArduPilot
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3DR Radio Telemetry Module — 433MHz or 915MHz, SiK Open-Source Firmware, MAVLink, FHSS, 2KM or 5KM Range, for Pixhawk, PX4 & ArduPilot
The 3DR Radio Telemetry Module is the standard telemetry solution for Pixhawk, PX4, and ArduPilot flight controllers, providing a reliable bidirectional MAVLink telemetry link between your UAV and ground station. Running open-source SiK firmware on a HopeRF HM-TRP module (SiLabs Si1000 RF microcontroller), it features Frequency Hopping Spread Spectrum (FHSS), Adaptive Time Division Multiplexing (TDM), and a transparent serial link for seamless integration. Available in 433MHz or 915MHz frequency bands and 500mW (2KM) or 1000mW (5KM) output power configurations.
Key Features
- Open-Source SiK Firmware — Field-configurable via AT commands (local) and RT commands (remote); supports adaptive flow control with ArduPilot/APM
- MAVLink Protocol Support — Native MAVLink framing and status reporting for seamless integration with QGroundControl, Mission Planner, and other GCS software
- Frequency Hopping Spread Spectrum (FHSS) — Robust interference rejection for reliable links in RF-congested environments
- Adaptive Time Division Multiplexing (TDM) — Efficient bidirectional data transmission
- -117 dBm Receiver Sensitivity — Excellent sensitivity for long-range telemetry links
- Air Data Rates up to 250 kbps — Fast telemetry for real-time flight data and mission updates
- Built-in Error Correction — Corrects up to 25% data bit errors for reliable links in challenging RF conditions
- LBT & AFA Support — Listen Before Talk and Adaptive Frequency Agility for regulatory compliance and interference avoidance
- Configurable Duty Cycle — Adjustable for regional regulatory compliance
- RP-SMA Antenna Connectors — Standard connectors for antenna upgrades and directional antenna use
- TTL UART Interface — Standard serial interface for direct connection to Pixhawk TELEM ports
Variant Options
- 433MHz — 500mW — 2KM range
- 433MHz — 1000mW — 5KM range
- 915MHz — 500mW — 2KM range
- 915MHz — 1000mW — 5KM range
Specifications
- Frequency Bands: 433MHz or 915MHz
- Output Power: 500mW or 1000mW
- Range: ~2KM (500mW) or ~5KM (1000mW) with supplied antennas
- Receiver Sensitivity: -117 dBm
- Air Data Rate: Up to 250 kbps
- Interface: TTL UART (standard serial)
- Antenna Connector: RP-SMA
- Modulation: FHSS + TDM
- Firmware: Open-source SiK
- RF Module: HopeRF HM-TRP (SiLabs Si1000)
- Weight: 0.19 kg (packaged)
What’s Included
- 1× USB base station (ground station radio)
- 1× Air transceiver (UAV-side radio, pin header)
- 2× Antenna
- 2× Cable set
- 1× Connector
Compatible Flight Controllers
- All Pixhawk-compatible flight controllers (Pixhawk 4, 5X, 6X, 6C, etc.)
- PX4 and ArduPilot (APM) based systems
- Any flight controller with a TTL UART TELEM port
Important Notes
- Select 433MHz for regions where 433MHz ISM band is permitted; select 915MHz for North America and other 915MHz ISM band regions
- Select 500mW for standard range applications; select 1000mW for extended range up to 5KM
- Can be used with a bidirectional amplifier for even greater range
- Configure via AT commands in Mission Planner or QGroundControl terminal
Shipping Policy
Estimated Delivery: Orders typically arrive within 3-7 business days to most locations in North America.
International Shipping: Available with tracking. Transit times vary by destination.
Return & Guarantee Policy
Return Policy: Defective or damaged item? Return it within 30 days for a full refund. Customer pays return shipping.
Technical Support: Need help with compatibility or setup? Contact our FPV experts for free assistance.
