NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-09-20 09:58:30Z · 05:40 · received at Pine Bush, NY 12566

Spectrogram of WWV time signal, 10000 kHz AM, 2026-09-20 09:58:30Z, 05:40: keyed-tone 94% · carrier 6% · tone 600 Hz · keying 0.20 Hz depth 0.91
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.9 MB ⤓ Opus 1303 kB { }
What was heard
keyed-tone 94% · carrier 6% · tone 600 Hz · keying 0.20 Hz depth 0.91 — dominant tone 600 Hz, keyed at 0.2 Hz (depth 0.91). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Pine Bush, NY 12566 (FN21up) · 250 ft Doublet, Elevation 100 ft · reported SNR 35 dB — thanks to the operator. Receivers
Provenance
sha256 e0b79888f31b72e6a40b15e0acae5a41a2126c2f882f93a2d7667aba3daaec29
source 05:40 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0958Z-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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