NIL HEARDRECEPTION LOG

WWVH time signal

tier A · carrier

15000 kHz AM · 2026-09-24 16:45:09Z · 05:00 · received at Maui, Hawaii, USA

Spectrogram of WWVH time signal, 15000 kHz AM, 2026-09-24 16:45:09Z, 05:00: carrier 93% · keyed-tone 7% · tone 120 Hz · keying 0.20 Hz depth 0.49
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.6 MB ⤓ Opus 1121 kB { }
What was heard
carrier 93% · keyed-tone 7% · tone 120 Hz · keying 0.20 Hz depth 0.49 — dominant tone 120 Hz, keyed at 0.2 Hz (depth 0.49). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Maui, Hawaii, USA (BL10us) · Discone · reported SNR 17 dB — thanks to the operator. Receivers
Provenance
sha256 420b43a8995c658b1e6ecfdcb3fca7bdd6a1558e4826ce3512143226790086db
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-24T1645Z-15000-wwvh-15000
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