NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · mixed

8957 kHz USB · 2026-09-25 13:15:39Z · 10:00 · received at South West England, UK

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-09-25 13:15:39Z, 10:00: mixed 97% · keyed-tone 3% · tone 416 Hz · keying 0.45 Hz depth 0.94
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.6 MB ⤓ Opus 2480 kB { }
What was heard
mixed 97% · keyed-tone 3% · tone 416 Hz · keying 0.45 Hz depth 0.94 — dominant tone 416 Hz, keyed at 0.45 Hz (depth 0.94). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, South West England, UK (IO80qr) · Switched · reported SNR 30 dB — thanks to the operator. Receivers
Provenance
sha256 cc2d54d736a9c2b0d222a592f829efe3c092bab571049e55db18f95bff4fb640
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-25T1315Z-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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