NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-09-20 05:59:03Z · 05:31 · received at Jackson TN, USA

Spectrogram of WWV time signal, 10000 kHz AM, 2026-09-20 05:59:03Z, 05:31: keyed-tone 94% · carrier 6% · tone 100 Hz · keying 1.00 Hz depth 0.93
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.4 MB ⤓ Opus 1316 kB { }
What was heard
keyed-tone 94% · carrier 6% · tone 100 Hz · keying 1.00 Hz depth 0.93 — dominant tone 100 Hz, keyed at 1.0 Hz (depth 0.93). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Jackson TN, USA (EM55qs) · Hygain 18ht 54 foot vertical ground mounted · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 899f48e7cb27b6819dd4eae75c83db9032dd79aa140a0f9f05b7d04d83b22c20
source 05:31 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0559Z-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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