NIL HEARDRECEPTION LOG

WWVH time signal

tier A · keyed-tone

15000 kHz AM · 2026-10-06 01:45:39Z · 04:12 · received at Maui, Hawaii, USA

Spectrogram of WWVH time signal, 15000 kHz AM, 2026-10-06 01:45:39Z, 04:12: keyed-tone 85% · carrier 15% · tone 100 Hz · keying 1.00 Hz depth 0.90
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.3 MB ⤓ Opus 984 kB { }
What was heard
keyed-tone 85% · carrier 15% · tone 100 Hz · keying 1.00 Hz depth 0.90 — dominant tone 100 Hz, keyed at 1.0 Hz (depth 0.9). 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 13 dB — thanks to the operator. Receivers
Provenance
sha256 225516cff73cf999f61a8964eeeeaaae631d04d23be88f3215c1358c39d663d6
source 04:12 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0145Z-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