The most capable rocketry tracker you can buy for flights up to 262,000 feet.

The Featherweight GPS Tracker is rocketry's longest-range tracking system, and the only system designed to work with iPhone (Android version is on a long-term to-do list).  Lots of advanced features are available, and more are on the way!

Featherweight GPS Tracker (upd)

$165.00 - $520.00
Available Now!
Picture
Tracker and tracker with ground station enclosure

Features

Longest Radio Range 

  • Yes, it really can communicate to space (though GPS data available to 262,467 feet).
  • No directional antenna needed
  • Robust margin for rocket body attenuation etc.
  • No cell service required at the range.  Just download the app over WiFi at home and you're good to go.

Advanced GPS (u‑blox M8)

  • Simultaneous reception of GPS, GLONASS, Galileo, and BeiDou constellations means more satellites for your tracker to choose from, giving you great reception wherever the antenna is pointed.
  • 10 GPS solutions per second
  • Vertical and horizontal velocity
  • Reports positions up to 80 km (262,467) altitude and up to 500 meters/second (Mach 1.45)

iPhone Compatible

Free Over-the-Air Software Upgrades

  • Buy in confidence now, knowing that additional features in the future are a button-click away
  • Nothing to plug in and no websites to monitor, just turn on the tracker while in the phone app and it will let you know if updates are available.

Small Size and new Longer Battery Life

  • 1.67" x 0.8" board size, not including antenna
  • Tracker can run 16 hours on a small, 400 mAhr single LiPo cell.
  • ​Ground station enclosure can stay up all weekend

Your Phone Points to Your Rocket

  • App uses GPS location, compass and accelerometers to point to your rocket
  • Real-time updates vertically and horizontally

Advanced Features

Spoken Telemetry (Done!)

  • You phone tells you the flight information so you can keep your eyes on the sky

Data Logging

  • Records GPS 3D velocity, location and signal strength at 10 samples per second for detailed post-flight analysis (Done!)
  • Approved for use in Tripoli altitude record attempts
  • Save as .kml file and plot in Google Earth (in progress)

Multi-Stage Flights (Done!)

  • Monitor two or more stages with one phone app and one ground station.
  • Easily switch channels to monitor each stage.

Over-the-Horizon Relay (Done!)

  • Any Featherweight tracker with a line of sight will relay the location of a "lost "rocket

Public Telemetry (planned)

  • Follow along with your friends' flight data with the press of a button
  • LCO can monitor flight progress real-time

Estimated Landing Point (planned)

  • Uses the GPS velocity from the last signal to estimate the last landing point
  • Choose to track to the last data or the estimated landing

Accessories and options

Tracker Battery + Adapter

$12.00
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Now available with a soldered wire whip antenna as an option when the antenna needs to stick through a bulkhead.  The radio performance of this option is equivalent to the standard stub antenna

Resources

Download the User's Manual, updated October 25, 2021
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gs_data_cmds_2020nov15.xlsx
File Size: 123 kb
File Type: xlsx
Download File

Tracker step file

Download a zip file of all Featherweight step files here.

38mm Nosecone 3D Model
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