Research Cycle 14 · ELF Band Studies · 2026

Signal behaviour
where propagation
breaks down

An independent laboratory investigating extremely low frequency radio propagation through geological strata, water columns, and ionospheric boundary layers. Closed membership. Peer access only.

Receiver active — Valais deep array, 00:31 UTC

Location

46.2°N 7.1°E

Environment

Granite substrate, 340m depth

Frequency

3 Hz – 3 kHz (ELF)

Archive ref

SRPL-2026-0512

Active experiments

Showing 3 of 891 records

SRPL-2026-0512

Schumann resonance amplitude drift study

Valais Alps, Switzerland

ELFSchumannGranite

SRPL-2026-0477

Cross-strata attenuation at 76 Hz

Gotthard Base Tunnel array

VLFAttenuationDeep

SRPL-2026-0441

Ionospheric reflection anomaly — solar min

Remote alpine baseline

IonosphereSolarLF

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Signal behaviourwhere propagationbreaks down

Active experiments

Schumann resonance amplitude drift study

Cross-strata attenuation at 76 Hz

Ionospheric reflection anomaly — solar min

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Signal behaviour
where propagation
breaks down