NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · mixed

8957 kHz USB · 2026-09-20 08:37:36Z · 10:00 · received at Wessex - KiwiSDR - G8JNJ - South West UK

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-09-20 08:37:36Z, 10:00: mixed 93% · keyed-tone 3% · voice 3% · tone 401 Hz · keying 0.82 Hz depth 0.82
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.5 MB ⤓ Opus 2492 kB { }
What was heard
mixed 93% · keyed-tone 3% · voice 3% · tone 401 Hz · keying 0.82 Hz depth 0.82 — dominant tone 401 Hz, keyed at 0.82 Hz (depth 0.82). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Wessex - KiwiSDR - G8JNJ - South West UK (IO80qr) · (same as Wessex KiWi V1) · reported SNR 32 dB — thanks to the operator. Receivers
Provenance
sha256 c2ac76e456b4e59429ef2bd35c4efb864a3fc69855ba719ed1622a814333b51a
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0837Z-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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