NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · mixed

8957 kHz USB · 2026-09-23 14:50:05Z · 10:00 · received at Ireland

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-09-23 14:50:05Z, 10:00: mixed 90% · keyed-tone 7% · carrier 3% · tone 431 Hz · keying 0.43 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.5 MB ⤓ Opus 2499 kB { }
What was heard
mixed 90% · keyed-tone 7% · carrier 3% · tone 431 Hz · keying 0.43 Hz depth 0.96 — dominant tone 431 Hz, keyed at 0.43 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Ireland (IO53mw) · Dipole · reported SNR 32 dB — thanks to the operator. Receivers
Provenance
sha256 1d824c864b88d05777e011db4c3e07202b29aeb6a609d337bacb53aded86505f
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T1450Z-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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