NIL HEARDRECEPTION LOG

NAVTEX

tier A · mixed

516.5 kHz USB · 2026-09-21 16:37:38Z · 02:04 · received at Larvik, Norway

Spectrogram of NAVTEX, 516.5 kHz USB, 2026-09-21 16:37:38Z, 02:04: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 2.1 MB ⤓ Opus 535 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, Larvik, Norway (JO49xa) · dipole · reported SNR 33 dB — thanks to the operator. Receivers
Provenance
sha256 e891c9bfb581c13d39e3f3d12b587aa4501df5f9fae11afbab4cd32f27b043c7
source 02:04 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T1637Z-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