NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · voice

8957 kHz USB · 2026-09-23 07:48:24Z · 10:00 · received at TREMOLAT (24), FRANCE

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-09-23 07:48:24Z, 10:00: voice 90% · carrier 3% · mixed 3% · keyed-tone 3% · tone 412 Hz · keying 0.80 Hz depth 0.93
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.9 MB ⤓ Opus 2675 kB { }
What was heard
voice 90% · carrier 3% · mixed 3% · keyed-tone 3% · tone 412 Hz · keying 0.80 Hz depth 0.93 — dominant tone 412 Hz, keyed at 0.8 Hz (depth 0.93). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, TREMOLAT (24), FRANCE (JN04ku) · Vertical pylon isolated 11 meters (ou Mini-Whip dual FET) · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 45e188f857605059c6d0ea17f628f45fb4686c4c546d8827e20a71e3b37d8839
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T0748Z-8957-volmet-8957
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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