NIL HEARDRECEPTION LOG

NAVTEX

tier A · mixed

516.5 kHz USB · 2026-10-06 04:59:02Z · 01:00 · received at ARANO (Navarra) Spain

Spectrogram of NAVTEX, 516.5 kHz USB, 2026-10-06 04:59:02Z, 01:00: mixed 67% · carrier 33% · tone 1415 Hz
spectrogram 0–6.0 kHz · analysis blocks: carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 1.0 MB ⤓ Opus 332 kB { }
What was heard
mixed 67% · carrier 33% · tone 1415 Hz — dominant tone 1415 Hz. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, ARANO (Navarra) Spain (IN93BE) · EndFed 40m long · reported SNR 37 dB — thanks to the operator. Receivers
Provenance
sha256 6815c1426641f95c3e8c820eeed32fb608079d08ad763c4c1603b56f4178eac5
source 01:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0459Z-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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