NIL HEARDRECEPTION LOG

WWV time signal, 20 MHz (day)

tier A · noise

20000 kHz AM · 2026-09-23 21:09:15Z · 10:00 · received at BIRMINGHAM, ALABAMA, USA

Spectrogram of WWV time signal, 20 MHz (day), 20000 kHz AM, 2026-09-23 21:09:15Z, 10:00: noise 100%
spectrogram 0–6.0 kHz · analysis blocks: noise
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 11.3 MB ⤓ Opus 2235 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, BIRMINGHAM, ALABAMA, USA (EM63oi) · BEVERAGE 500 feet long Combine with MLA-30+ MAG LOOP /Low Pass Filter/Band Pass Filter/ A lot of ferrite Core. Linear Power supply. Do not use switching power supply. Ever. · reported SNR 26 dB — thanks to the operator. Receivers
Provenance
sha256 d9f1632cf9093b56678e5f3fe12668cc590934a1d1dfb8ae115d8bcf679f6aef
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T2109Z-20000-wwv-20000
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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