NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-10-02 12:00:21Z · 03:56 · received at PRADIERS DEP 15 JN15LG, FRANCE

Spectrogram of WWV time signal, 10000 kHz AM, 2026-10-02 12:00:21Z, 03:56: keyed-tone 100% · tone 3972 Hz · keying 0.25 Hz depth 0.65
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.4 MB ⤓ Opus 898 kB { }
What was heard
keyed-tone 100% · tone 3972 Hz · keying 0.25 Hz depth 0.65 — dominant tone 3972 Hz, keyed at 0.25 Hz (depth 0.65). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, PRADIERS DEP 15 JN15LG, FRANCE (JN15lg) · KELEMEN 80/40/20/15/10 · reported SNR 32 dB — thanks to the operator. Receivers
Provenance
sha256 10b5d46c84c9c92197d42d6e5a65b26ab66d35932051d33b9f5a839feaf72a05
source 03:56 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T1200Z-10000-wwv-10000
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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