NIL HEARDRECEPTION LOG

Empty band / atmospherics

tier A · noise

4500 kHz AM · 2026-09-22 01:10:53Z · 06:18 · received at Brettnach F57320

Spectrogram of Empty band / atmospherics, 4500 kHz AM, 2026-09-22 01:10:53Z, 06:18: noise 100%
spectrogram 0–6.0 kHz · analysis blocks: noise
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 7.1 MB ⤓ Opus 1431 kB { }
What was heard
noise 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 42 dB — thanks to the operator. Receivers
Provenance
sha256 4fef68f724653588a9ff9ae6c5c2dc61d8486a56d8ee4e55d2000fb03ea08f25
source 06:18 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-22T0110Z-4500-quiet-4500
Heard in the record
— linked once the record exists.
Licence
CC BY 4.0 — credit NIL HEARD / Reception Log. The recording is ours; the transmission is somebody else's. Descriptions describe sound, never content — why.
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