NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

10000 kHz AM · 2026-09-24 19:00:36Z · 10:00 · received at Assen | Netherlands

Spectrogram of WWV time signal, 10000 kHz AM, 2026-09-24 19:00:36Z, 10:00: keyed-tone 80% · morse 10% · data 7% · noise 3% · tone 3999 Hz · keying 0.30 Hz depth 0.84
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse data noise
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.1 MB ⤓ Opus 2385 kB { }
What was heard
keyed-tone 80% · morse 10% · data 7% · noise 3% · tone 3999 Hz · keying 0.30 Hz depth 0.84 — dominant tone 3999 Hz, keyed at 0.3 Hz (depth 0.84). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 42 dB — thanks to the operator. Receivers
Provenance
sha256 6a1046c0207bd8cc671f1336a23005aa4532c7733ac1bfea13027966a81fd64b
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-24T1900Z-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