Facilities
Remote Field Stations
Unattended stations at distance from Calder Ridge, providing the separation that coincidence analysis requires.
A signal recorded at a single station is a curiosity. The same signal, recorded in the same instant at a station hundreds of miles away, is a problem -- because the ordinary explanations for a local anomaly do not survive the separation. The remote stations exist to create that separation.
The network
The Laboratories operate a small set of unattended field stations at distance from Calder Ridge. Each carries a reduced instrument suite, a shared time standard, and a link back to the analysis pipeline. Their purpose is not sensitivity but geometry: a detection confirmed across a long baseline cannot be a fault of any single instrument, a reflection off any single structure, or a source of interference local to any single site.
| Element | Notes |
|---|---|
| Receiver | reduced low-noise suite |
| Time standard | GPS-disciplined, shared |
| Power | grid + battery backup |
| Link | to the analysis pipeline |
| Staffing | unattended |
Coincidence
The Laboratories maintain a small number of coincident detections -- signals recorded at separated stations in the same instant -- as Class III, unresolved. Every test for chance and cross-talk has been applied to them; where those tests do not account for an event, it is catalogued precisely and kept under study pending further data.
- 1.FAL Technical Report 04-009, Coincidence analysis across separated stations.