NIL HEARDRECEPTION LOG

NAVTEX

tier A · mixed

516.5 kHz USB · 2026-09-29 16:21:12Z · 02:14 · received at Bősárkány, Hungary

Spectrogram of NAVTEX, 516.5 kHz USB, 2026-09-29 16:21:12Z, 02:14: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 2.4 MB ⤓ Opus 551 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, Bősárkány, Hungary (JN87pq) · Fritzel FD4 windom (80 - 10 m) · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 914dfbad76cec82cabab9d3c3f334696e8207d852ad7826dc1db45651a7eb9c7
source 02:14 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-29T1621Z-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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