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GPS transponder

Seatrack 220 / 320

SeaTrack 220

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For 3D and vertical seismic surveys

The Seatrack 220/320 represents a new generation GPS transponder used in 3D and vertical seismic surveys for streamer tailbuoy / gunfloat positioning, as well as marine operations such as barge management, and vessel traffic monitoring. It includes a 12-channel, high-performance GPS receiver, a synthesized UHF radio, antennas and a communication computer packaged in a robust, self-contained unit.

GPS transponder applications

GPS data is collected and transmitted to the vessel by the internal UHF radio or a communication line. Time Division Multiple Access (TDMA) is used for multiple unit transmission at a common frequency. Seatrack 220 is developed for tailbuoy operation while the even more robust Seatrack 320 is design to resist the extreme shocks at a gunfloat.

Key features

  • Rugged GPS transponder with integrated GPS and UHF antenna
  • High accuracy relative GPS solution using code and carrier phase data
  • Transmission of GPS data to vessel via UHF radio or cable
  • TDMA (Time Division Multiple Access) functionality for multiple units using a single UHF frequency
  • Remotely configurable
  • Continuous voltage monitoring
  • Power efficient
  • Up to 3 serial I/O ports for interface to other equipment
  • Up to 2 relay outputs for control of external equipment
  • One year hardware warranty

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