NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

5000 kHz AM · 2026-09-22 00:01:18Z · 06:07 · received at Tellico Plains, TN USA

Spectrogram of WWV time signal, 5000 kHz AM, 2026-09-22 00:01:18Z, 06:07: noise 68% · keyed-tone 32% · tone 551 Hz · keying 0.38 Hz depth 0.88
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone noise
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.7 MB ⤓ Opus 1404 kB { }
What was heard
noise 68% · keyed-tone 32% · tone 551 Hz · keying 0.38 Hz depth 0.88 — dominant tone 551 Hz, keyed at 0.38 Hz (depth 0.88). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Tellico Plains, TN USA (EM75ul) · end-fed 173' wire @ 50' · reported SNR 35 dB — thanks to the operator. Receivers
Provenance
sha256 4fb739b85224fc8c278c0f79d13888c6d99b19b37db45ededdb8e9e6bf2844c5
source 06:07 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-22T0001Z-5000-wwv-5000
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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