NIL HEARDRECEPTION LOG

NAVTEX

tier A · mixed

516.5 kHz USB · 2026-09-26 12:18:34Z · 10:00 · received at South West England, UK

Spectrogram of NAVTEX, 516.5 kHz USB, 2026-09-26 12:18:34Z, 10:00: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.3 MB ⤓ Opus 2472 kB { }
What was heard
mixed 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, South West England, UK (IO80qr) · Switched · reported SNR 30 dB — thanks to the operator. Receivers
Provenance
sha256 3f9945aca414d08c0e27505c3c8f640eec39aad84de1d02e18181409b04f755e
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T1218Z-516.5-navtex-518
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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