NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

5000 kHz AM · 2026-09-22 05:15:13Z · 02:00 · received at Tellico Plains, TN USA

Spectrogram of WWV time signal, 5000 kHz AM, 2026-09-22 05:15:13Z, 02:00: keyed-tone 100% · tone 551 Hz · keying 0.30 Hz depth 0.98
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 2.1 MB ⤓ Opus 477 kB { }
What was heard
keyed-tone 100% · tone 551 Hz · keying 0.30 Hz depth 0.98 — dominant tone 551 Hz, keyed at 0.3 Hz (depth 0.98). 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 36 dB — thanks to the operator. Receivers
Provenance
sha256 d5b7ac91f51c68603803e97a6b8d2efe848a2abcd8ade98c60735d1b1549bf11
source 02:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-22T0515Z-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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