Notable Findings
The entries that resist explanation
Most of what the Laboratories record is ordinary. These are a few of the entries that are not -- described precisely, classified by behavior, and held open until they can be accounted for.
FA-0447, the Calder Ridge carrier
A narrow-band signal near 18.6 kHz, first logged in 1971, that has returned for more than fifty years and matches no known source.
The March coincidences
A small set of detections recorded at widely separated stations in the same instant, resisting every local explanation.
A resonance that keeps the calendar
A ground resonance whose returns correlate with dates on the calendar rather than with any motion of the sky.
Below the noise floor: the recovered 1966 tape
A signal too faint to hear in 1966, recovered decades later when the analysis finally caught up to it.
The quiet band
A narrow region of the spectrum that goes measurably silent on a schedule the Laboratories cannot account for.
Twelve seconds, once
A single, strong, unrepeatable event recorded in 1979 and never heard again.