NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · voice

8957 kHz USB · 2026-10-06 14:17:12Z · 09:58 · received at Larvik, Norway

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-10-06 14:17:12Z, 09:58: voice 73% · mixed 23% · keyed-tone 3% · tone 431 Hz · keying 1.00 Hz depth 0.80
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.2 MB ⤓ Opus 2536 kB { }
What was heard
voice 73% · mixed 23% · keyed-tone 3% · tone 431 Hz · keying 1.00 Hz depth 0.80 — dominant tone 431 Hz, keyed at 1.0 Hz (depth 0.8). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Larvik, Norway (JO49xa) · dipole · reported SNR 31 dB — thanks to the operator. Receivers
Provenance
sha256 621e1f5e606a504c21f36ff5d8736f277609745cfd5ab16f887f7c13b4f7a36d
source 09:58 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T1417Z-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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