New product! The 3DR Radio Telemetry System


Hi everyone, I'm very happy to announce something that 3D Robotics has been working on since late last year in cooperation with a few very talented developers. Today we are announcing the 3DR Radio telemetry system, an open-source alternative to XBee telemetry set-ups, with superior performance, great range and a much lower price (half the price of the equivalent Xbee kit).

This is a 2-way, half-duplex wireless communication system with a standard TTL UART interface, based on HopeRF's HM-TRP data link modules, and custom firmware that improves upon the module's original features and performance.

The SiK firmware includes a bootloader that permits radio firmware updates over the serial interface, and radio firmware with configurable parameters. Updates and configuration are fully supported in the APM Mission Planner (press control-A to bring up the window below), and also possible through AT commands.


From the wiki:

  • light weight (under 4 grams without antenna)
  • available in 900MHz or 433MHz variants
  • receiver sensitivity to -121 dBm
  • transmit power up to 20dBm (100mW)
  • transparent serial link
  • air data rates up to 250kbps
  • MAVLink protocol framing and status reporting
  • frequency hopping spread spectrum (FHSS)
  • adaptive time division multiplexing (TDM)
  • support for LBT and AFA
  • configurable duty cycle
  • builtin error correcting code (can correct up to 25% data bit errors)
  • demonstrated range of several kilometres with a small omni antenna
  • can be used with a bi-directional amplifier for even more range
  • open source firmware
  • AT commands for radio configuration
  • RT commands for remote radio configuration
  • adaptive flow control when used with APM
  • based on HM-TRP radio modules, with Si1000 8051 micro-controller and Si4432 radio module
Support for different countries and regions is documented in the wiki:
Of course, the list will keep growing, and you can help by providing links on the forums to relevant information on the applicable regulations. This is a DIY radio device, so please check your local rules carefully!

Each kit consists of an 'air' and 'ground' variant, with an FTDI-style 6-pin header and USB type-A connector, respectively. Also included are two RP-SMA antennas, APM telemetry cable, and a USB type-A extension cable for placement flexibility.

Kit price is $74.99:

Individual radios are $35.99 (USB) and $31.99 (pins):

Kits and radios are available for purchase today, and they will start shipping next week.

Coming soon: a 3DR Radio XBee footprint adapter for both frequencies, compatible with our USB XBee adapter and Sparkfun's XBee Explorer boards.

We will also be releasing a version of the radios on both frequencies with an Xbee-compatible footprint, so you already have Xbee adapters, you can use them. 

We hope you enjoy using these radios as much as we have during development, the simpler hardware and configuration tools compared to XBee provide a much smoother experience. We look forward to hearing your comments!

Huge thanks to the developers who made this happen: Team leaders Andrew Tridgell and Mike Smith along with Michael Oborne, Seppo Saario, Marco Robustini and others. 

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  • Yaye got mine today in Canada N.B. thanks guys...

  • Is it Compatible with the Ardustation? I wanna use it for the Antenna tracking.

  • When i added the 3DR RadioTelemetry Kit-433Mhz to my cart, i get the message

    This item has not been added to your cart. The following kit item currently has no available stock: 3DR Radio 433Mhz "Air" module

    What is the tentative date for the arrival of the air module??

  • Developer


    If you have GSM 900 then just don't use that frequency. For example, in Australia, the ISM band starts at 915 and goes to 928. That is actually the default for the 3DR 900 radios.

    Cheers, Tridge

  • Guys tell me apart from the legal restrictions and all, what are the downsides of using 3DR RadioTelemetry Kit-915 Mhz in presence of GSM 900?? I heard the effect is prominent near the cell phone tower, not so much else where.

  • Day of released for sale.
  • When did you place your order?

  • Mine was shipped yesterday:)

  • When will the shipping begin ...I hope I week is being completed and I am asking about the 900Mhz modules ...When will APM 2 come on stock ...I need them for my university project 

  • I got my order in when they first came out but think there are waiting for a header or something. Can't wait to replace the xbees with these. Going to put the xbees in Turnigy 9x with GV9x firmware that uses mavlink so don't have to look at laptop all the time.

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