NIL HEARDRECEPTION LOG

NAVTEX

tier A · mixed

516.5 kHz USB · 2026-10-05 15:38:41Z · 06:07 · received at Heppen, Limburg, Belgium

Spectrogram of NAVTEX, 516.5 kHz USB, 2026-10-05 15:38:41Z, 06:07: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.5 MB ⤓ Opus 1504 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, Heppen, Limburg, Belgium (JO21oc) · Longwire 54m top 70m above sealevel · reported SNR 36 dB — thanks to the operator. Receivers
Provenance
sha256 ddfa4104c47f00803bfe970c7b636215066362615c9d2f22b8c60abedb21cedd
source 06:07 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-05T1538Z-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.
Related