NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · voice

5505 kHz USB · 2026-09-19 22:30:15Z · 06:56 · received at Ireland

Spectrogram of Shannon VOLMET aviation weather, 5505 kHz USB, 2026-09-19 22:30:15Z, 06:56: voice 90% · keyed-tone 5% · mixed 5% · tone 407 Hz · keying 0.98 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.9 MB ⤓ Opus 1857 kB { }
What was heard
voice 90% · keyed-tone 5% · mixed 5% · tone 407 Hz · keying 0.98 Hz depth 0.95 — dominant tone 407 Hz, keyed at 0.98 Hz (depth 0.95). 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 41 dB — thanks to the operator. Receivers
Provenance
sha256 f4940ded1fdc0aecce320169dfa404cabcd294cd147f961772a38bf68feb31f5
source 06:56 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-19T2230Z-5505-volmet-5505
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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