N1vg

Automatic Position Reporting System (APRS) is used to transmit location and other real-time data over amateur radio frequencies. [Scott Miller]'s OpenTracker project is designed to encode the NMEA data from a serial GPS receiver for transmission. It doesn't have to... more

Detail of high altitude balloon experiment. A ham radio, GPS, cameras, and an OpenTracker were put in a weather balloon and launched in the California desert. The balloon reached 106,000 feet, all of the contents were recovered, and pictures are posted to the site.