NIL HEARDRECEPTION LOG

NAVTEX

tier A · mixed

516.5 kHz USB · 2026-09-23 21:48:10Z · 01:35 · received at TREMOLAT (24), FRANCE

Spectrogram of NAVTEX, 516.5 kHz USB, 2026-09-23 21:48:10Z, 01:35: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 1.6 MB ⤓ Opus 481 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, TREMOLAT (24), FRANCE (JN04ku) · Vertical pylon isolated 11 meters (ou Mini-Whip dual FET) · reported SNR 45 dB — thanks to the operator. Receivers
Provenance
sha256 1127ceac9aa14f9f212550b8ca06f2ced13d67d38dc43cced834e3079ae284a7
source 01:35 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T2148Z-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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