WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-09-25 12:08:29Z · 10:00 · received at PRADIERS DEP 15 JN15LG, FRANCE

Spectrogram of WWV time signal, 10000 kHz AM, 2026-09-25 12:08:29Z, 10:00: keyed-tone 90% · carrier 7% · noise 3% · tone 3972 Hz · keying 1.00 Hz depth 0.97 — spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier noise

loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 11.0 MB ⤓ Opus 2243 kB { }

What was heard

keyed-tone 90% · carrier 7% · noise 3% · tone 3972 Hz · keying 1.00 Hz depth 0.97 — dominant tone 3972 Hz, keyed at 1.0 Hz (depth 0.97). 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 29 dB — thanks to the operator. Receivers

Provenance

sha256 80de46a5654084353ca514f7680e86cb1ae44164eeed51d0dc811c39ef5603c7
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-25T1208Z-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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