NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-10-01 19:44:49Z · 10:00 · received at Brettnach F57320

Spectrogram of WWV time signal, 10000 kHz AM, 2026-10-01 19:44:49Z, 10:00: keyed-tone 50% · morse 47% · carrier 3% · tone 20 Hz · keying 2.00 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.6 MB ⤓ Opus 2510 kB { }
What was heard
keyed-tone 50% · morse 47% · carrier 3% · tone 20 Hz · keying 2.00 Hz depth 0.96 — dominant tone 20 Hz, keyed at 2.0 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 45 dB — thanks to the operator. Receivers
Provenance
sha256 a8369a852b85fb147876950569c27cf43d0fc25973de29404485f4ca933e8dd4
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-01T1944Z-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.
Related