The ST900 is designed to provide a robust telemetry platform for high performance use. The heart of the ST900 is the uBox 5 GPS with -161 db sensitivity and less than 30 second cold time to first fix. This GPS is so sensitive it can hold lock even inside some buildings. The ST900 provides an MCX GPS antenna connector.
The 100mw spread spectrum wireless transmitter operates in the license-free 900mhz band from 902 to 928Mhz. The unit provides excellent range by sending compressed binary data using the SWARM protocol. SWARM compresses data 8x so that it can be sent faster and over longer distances than non-optimized protocols like NMEA.
The ST900 data is received by a GPSFlight base station such as the RXBase3 USB or Ethernet models. Each base station can collect data from hundreds of simultaneous ST900 units at once.
The ST900 can be configured to send position information including name of the unit, it’s “TracID” over distances up to 20 miles line of sight depending on the transmitter and receiver antenna used. In addition to the TracID, the ST900 can send other location/performance information at rates up to 4Hz or ever 250 ms:
At only 3” long and 2” wide, its small size and high performance GPS and radio make the ST900 a perfect tracking device to be integrated into recreational tracking or commercial tracking applications.