NIL HEARDRECEPTION LOG

VLF Israel 29.7 kHz submarine broadcast

tier A · mixed

28.7 kHz USB · 2026-10-03 03:22:40Z · 05:06 · received at Brettnach F57320

Spectrogram of VLF Israel 29.7 kHz submarine broadcast, 28.7 kHz USB, 2026-10-03 03:22:40Z, 05:06: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.1 MB ⤓ Opus 1456 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, Brettnach F57320 (JN39GG) · vertical · reported SNR 40 dB — thanks to the operator. Receivers
Provenance
sha256 e530fcbdbfbaba5f4dea7ce9aaaf0a6f17859c125c908d4e56a804117133f4ff
source 05:06 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T0322Z-28.7-vlf-28700
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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