Sophisticated and adaptable, high fidelity seismic digitiser

The Güralp Affinity is a high-fidelity integrated digitiser and network communications unit that provides a convenient and expandable way of connecting analogue and digital instruments to your network.

Key Features

  • Eight 24-bit channels: 6 primary and 2 auxiliary
  • Exceptionally low noise: >138 dB of dynamic range @ 100sps
  • 16 environmental multiplexed ADC channels
  • STA/LTA, level and external triggers
  • High sampling rates of up to 4000 samples per second
  • Four (or eight) streams with individually selectable sample rates (continuous or triggered)
  • UTC time-stamped data using a low-power GPS receiver and state of the art timing protocols e.g. Precision Timing Protocol (PTP)
  • Multi-user Linux operating system with full network support
  • Remote configuration with on-board Web server (HTTP and HTTPS)
  • On-board, high-speed USB2.0 accessible storage (16 GB capacity; other options available)
  • Additional external USB storage connection
  • Full remote control of digitiser parameters
  • Full remote control of broadband sensors, including remote lock, unlock and centre, via web server
  • Supports multiple data formats, including GCF, GDI, miniSEED, CD1.1 and SEEDlink
  • Built-in calibration signal generator: step, sine or broadband
  • Fully integratable with a wide range of multi-disciplinary sensors
  • Mass positions streamed in real-time at high sample rates
  • Switchable gain for individual channels

Read more about the Güralp Affinity in the Affinity datasheet View as PDF



For detailed specifications see the Affinity datasheet View as PDF


Affinity digitiser

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You can view our case studies to find out more about how our instrumentation is used around the world.



Guralp Systems Limited
Midas House
Calleva Park

Tel: +44 118 981 9056
Fax: +44 118 981 9943