NIL HEARDRECEPTION LOG

Empty band / atmospherics

tier A · noise

4500 kHz AM · 2026-09-20 04:11:42Z · 10:00 · received at Assen | Netherlands

Spectrogram of Empty band / atmospherics, 4500 kHz AM, 2026-09-20 04:11:42Z, 10:00: noise 100%
spectrogram 0–6.0 kHz · analysis blocks: noise
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 11.0 MB ⤓ Opus 2331 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, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 42 dB — thanks to the operator. Receivers
Provenance
sha256 39b7cc93bf3857132980960942c50f37a6cb649f450caba4de8f4198c9ba9e60
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0411Z-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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