NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · mixed

8957 kHz USB · 2026-09-20 10:31:34Z · 10:01 · received at Ireland

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-09-20 10:31:34Z, 10:01: mixed 97% · keyed-tone 3% · tone 568 Hz · keying 0.40 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 2504 kB { }
What was heard
mixed 97% · keyed-tone 3% · tone 568 Hz · keying 0.40 Hz depth 0.94 — dominant tone 568 Hz, keyed at 0.4 Hz (depth 0.94). 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 f9ecd1f068b05ee29721cc6909f94b1dbf326b3c9ab3a24cdf817de033143836
source 10:01 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T1031Z-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.
Related