Skip to content
Fundamental AcousticsLaboratories / Est. 1958

FIG · Established 1961

Field Instrumentation Group

The arrays, hydrophones, and detectors behind every measurement.

FIG designs, builds, and maintains the physical instruments of the Laboratories: the antenna and hydrophone arrays at Calder Ridge, the remote field stations, and the low-noise detectors that make persistent signals recoverable at all.