WWVH time signal
loop [ ] · speed in the player bar · deep link #t=seconds
⤓ FLAC 4.4 MB
⤓ Opus 954 kB
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- What was heard
- keyed-tone 75% · carrier 25% · tone 1157 Hz · keying 0.25 Hz depth 0.82 — dominant tone 1157 Hz, keyed at 0.25 Hz (depth 0.82). 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 14 dB — thanks to the operator. Receivers
- Provenance
- sha256 f02a7c64ff554bda2d84ab6ea90cec74a97bd2a078344b670cb8ac17db5542d1
source 04:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-18T2113Z-15000-wwvh-15000 - Heard in the record
- — linked once the record exists.
- Notes
-
rig: WWVH Kekaha, Kauai; female voice UTC announcement at :45 each minute, 1200 Hz ticks, 500/600 Hz tones. 15 MHz daytime; receiver steered to Hawaii so WWVH dominates WWV on the shared frequency. Source: nist.gov WWV/WWVH broadcast format
- 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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