NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-09-20 03:40:06Z · 10:00 · received at Jackson TN, USA

Spectrogram of WWV time signal, 10000 kHz AM, 2026-09-20 03:40:06Z, 10:00: keyed-tone 53% · carrier 37% · data 10% · tone 26 Hz · keying 0.30 Hz depth 0.92
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.3 MB ⤓ Opus 2352 kB { }
What was heard
keyed-tone 53% · carrier 37% · data 10% · tone 26 Hz · keying 0.30 Hz depth 0.92 — dominant tone 26 Hz, keyed at 0.3 Hz (depth 0.92). 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 36 dB — thanks to the operator. Receivers
Provenance
sha256 0ec269281f5cb65c062467bc6434cebd187ea52a8565212c0776ba43734ceb5d
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0340Z-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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