NIL HEARDRECEPTION LOG

VLF Israel 29.7 kHz submarine broadcast

tier A · carrier

28.7 kHz USB · 2026-10-06 02:23:59Z · 10:00 · received at Montmorillon 86500 FRANCE

Spectrogram of VLF Israel 29.7 kHz submarine broadcast, 28.7 kHz USB, 2026-10-06 02:23:59Z, 10:00: carrier 53% · mixed 47% · tone 1304 Hz
spectrogram 0–6.0 kHz · analysis blocks: carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.4 MB ⤓ Opus 2586 kB { }
What was heard
carrier 53% · mixed 47% · tone 1304 Hz — dominant tone 1304 Hz. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Montmorillon 86500 FRANCE (JN06kj) · Antenna Shared Apex SAL 30 array solution · reported SNR 43 dB — thanks to the operator. Receivers
Provenance
sha256 4808668afbc2af45d3279963f37c7c915a8208b83504f162a1a60342ec1bcae2
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0223Z-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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