NIL HEARDRECEPTION LOG

WWVH time signal

tier A · carrier

15000 kHz AM · 2026-09-24 22:44:38Z · 05:00 · received at Waimea, Hawaii

Spectrogram of WWVH time signal, 15000 kHz AM, 2026-09-24 22:44:38Z, 05:00: carrier 47% · keyed-tone 47% · data 7% · tone 882 Hz · keying 1.00 Hz depth 0.88
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.0 MB ⤓ Opus 1172 kB { }
What was heard
carrier 47% · keyed-tone 47% · data 7% · tone 882 Hz · keying 1.00 Hz depth 0.88 — dominant tone 882 Hz, keyed at 1.0 Hz (depth 0.88). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Waimea, Hawaii (BL20da) · Tuned fan dipole · reported SNR 20 dB — thanks to the operator. Receivers
Provenance
sha256 8256b2344f70ce5e1d4e151232a15368dd12a3cb0746562203b38664e2106e31
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-24T2244Z-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.
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