NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-09-21 20:38:23Z · 10:00 · received at villers aux bois france

Spectrogram of WWV time signal, 10000 kHz AM, 2026-09-21 20:38:23Z, 10:00: keyed-tone 83% · carrier 13% · noise 3% · tone 3999 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 2278 kB { }
What was heard
keyed-tone 83% · carrier 13% · noise 3% · tone 3999 Hz · keying 1.00 Hz depth 0.97 — dominant tone 3999 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, villers aux bois france (JN18xw) · LW 20 LONG FIL MULTIBANDE 0 à 30 mhz · reported SNR 31 dB — thanks to the operator. Receivers
Provenance
sha256 b69bae17716f79428608db11e1ff592df4956a69bb9980731cc7b3c55f406424
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T2038Z-10000-wwv-10000-na
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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