Campbell Scientific’s TX320 is a high data rate (HDR) transmitter that provides communications, via GOES satellites, from a Data Collection Platform (DCP) to a receiving station. It is compatible with most Campbell Scientific dataloggers and offers a convenient telemetry option for remote DCPs in the Western Hemisphere.
The TX320 supports data transmission rates of 300 and 1200 bps. Because clock accuracy is critically important for GOES satellite telemetry, the TX320 includes a robust, temperature-compensated-oscillator (TCXO) based clock and a GPS receiver. The real-time clock's precision allows independent operation for up to 28 days without GPS correction.
GOES satellites have orbits that coincide with the Earth’s rotation, allowing each satellite to remain above a specific region. GOES satellites cover the western hemisphere.
The GOES system is administered by the National Environmental Satellite Data Information Service (NESDIS). NESDIS assigns addresses, uplink channels, and self-timed/random transmit time windows. Self-timed windows allow data transmission only during a predetermined time frame. Random windows are for applications of a critical nature (e.g., flood reporting) and allow transmission immediately after a threshold has been exceeded.
Data Collection Platform (DCP) Equipment
Retrieving Data from the Ground Receiving Station
Supply Current @ 12 Vdc
CS I/O Port
1 - ASCII command protocol is described in “G5 ASCII Command Protocol (Document number 700-G5-CMND-ASCII)."
2 - Binary packet protocol is described in “G5 Binary Command Protocol (Document number 700-G5-CMND-BIN)."