SKU: DRFC-2217
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433MHz 100mW Radio Telemetry Kit

₹6,879.00 (Inclusive of all taxes)
Out of Stock

The 433MHz 100mW Radio Telemetry Kit provides a long-range, bi-directional MAVLink telemetry link for APM and Pixhawk-based flight controllers. Featuring FHSS and adaptive TDM, it offers robust communication up to 1.6 km and is configurable via Mission Planner or APM Planner.

Features

  • 433MHz frequency with 100mW adjustable output power for extended range.
  • MAVLink protocol framing with Frequency Hopping Spread Spectrum (FHSS) for interference resistance.
  • Interchangeable air and ground modules, each with Micro-USB and DF13 connectors.
  • Configurable via AT/RT commands through Mission Planner or APM Planner ground control software.
  • Based on the HopeRF HM-TRP module with a SiLabs Si1000 RF microcontroller.

Out of stock

Description

This telemetry kit establishes a transparent serial link between an airborne autopilot and a ground station, enabling real-time telemetry data transmission and mission parameter updates. It employs adaptive time division multiplexing (TDM) and supports Listen Before Talk (LBT) and Adaptive Frequency Agility (AFA) to maintain a stable connection in crowded RF environments. The built-in error-correcting code can correct up to 25% of data bit errors, ensuring data integrity over long distances.

Designed for integration with APM and Pixhawk flight controllers, the modules feature a 3.3V UART interface and operate on a wide voltage range of 3.6V to 7V. The compact and lightweight design, coupled with RP-SMA antenna connectors, makes it suitable for a wide range of UAV platforms requiring reliable long-range telemetry.

Key Features

  • 100mW output power (adjustable) on the 433MHz ISM band for robust long-range communication.
  • Frequency Hopping Spread Spectrum (FHSS) with adaptive TDM mitigates interference and enables full-duplex communication.
  • Interchangeable air and ground modules provide flexible deployment and simplified logistics.
  • Integrated error-correcting code corrects up to 25% of bit errors for high data integrity.
  • Configurable duty cycle and support for LBT/AFA protocols ensure regulatory compliance and spectrum efficiency.
  • Micro-USB port and 6-position DF13 connector offer multiple interface options for power and data.
  • Based on the proven HopeRF HM-TRP radio module with a SiLabs Si1000 RF microcontroller.

Applications

  • Long-range telemetry for APM 2.x or Pixhawk-series flight controllers in fixed-wing UAVs.
  • Bi-directional data link for mission planning and telemetry monitoring in ArduPilot or PX4-based multirotor drones.
  • Ground station communication for survey, mapping, or agricultural drones requiring reliable telemetry beyond visual line of sight (BVLOS).
  • Backup telemetry system for redundancy in professional or industrial drone applications.

Technical Specifications

Frequency433 MHz
Rated Power100 mW (adjustable)
Maximum Range~1600 m (1 mile)
Air Data RateUp to 250 kbps
Receive Sensitivity-121 dBm
Interface3.3V UART (Serial), Micro-USB, DF13
Operating Voltage3.6 - 7 V
Operating Current1.1 A
Operating Temperature-10°C to +85°C
ProtocolMAVLink
Key TechnologiesFHSS, Adaptive TDM, LBT, AFA
Antenna ConnectorRP-SMA
Module CoreHopeRF HM-TRP (SiLabs Si1000)

Frequently Asked Questions

What flight controllers is this 433MHz telemetry kit compatible with?

This kit is designed for use with APM 2.x and Pixhawk-series flight controllers (including Pixhawk 1, 2, 4, and clones) that utilize the MAVLink protocol. It connects via the dedicated telemetry port using the included DF13 cables. It is not natively compatible with Betaflight or ExpressLRS-focused flight controllers without additional protocol conversion.

How do I configure the radio settings and power output?

Configuration is performed through ground control software like Mission Planner or APM Planner. Using the Micro-USB port on either module, you can connect to the software's terminal and issue AT or RT commands to adjust parameters such as transmit power, air data rate, duty cycle, and network ID. The maximum output power is 100mW but can be reduced for compliance with local regulations.

Are the air and ground modules physically different?

No, the modules are functionally identical and interchangeable. This design simplifies logistics, as any module can be used as either the air unit or ground unit. The role is defined by software configuration (setting the MAVLink system ID) rather than hardware. Each module includes both a Micro-USB port for ground-side configuration and a DF13 connector for in-flight telemetry.

What is the actual range I can expect with the included antennas?

The demonstrated range is approximately 1.6 kilometers (1 mile) in open, unobstructed terrain using the included 3.5 dBi omnidirectional antennas. Range can be significantly reduced by obstacles, interference, or unfavorable atmospheric conditions. For extended range, users can upgrade to higher-gain directional antennas or integrate an external bi-directional amplifier.

Package Includes

  • 1 x Radio Telemetry Module (air or ground, with or without case - random)
  • 1 x Radio Telemetry Module (air or ground, with or without case - random)
  • 2 x RP-SMA Antennas (3.5 dBi)
  • 2 x DF13 Cables (for APM/Pixhawk connection)

Additional Information

Weight 0.039 kg
Dimensions 7 × 10 × 5 cm