NIL HEARDRECEPTION LOG

WWV time signal

tier A · keyed-tone

5000 kHz AM · 2026-09-20 03:12:45Z · 10:00 · received at White House, Tennesee

Spectrogram of WWV time signal, 5000 kHz AM, 2026-09-20 03:12:45Z, 10:00: keyed-tone 93% · carrier 7% · tone 600 Hz · keying 0.23 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.9 MB ⤓ Opus 2419 kB { }
What was heard
keyed-tone 93% · carrier 7% · tone 600 Hz · keying 0.23 Hz depth 0.96 — dominant tone 600 Hz, keyed at 0.23 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, White House, Tennesee (EM66pl) · 160 meter longwire · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 ca7e95d40c2db898a09670c8391dc549226b5ff16afecb773a761ae41818ec03
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0312Z-5000-wwv-5000
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