NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · mixed

5505 kHz USB · 2026-09-24 05:10:49Z · 06:38 · received at Assen | Netherlands

Spectrogram of Shannon VOLMET aviation weather, 5505 kHz USB, 2026-09-24 05:10:49Z, 06:38: mixed 95% · keyed-tone 5% · tone 407 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 7.0 MB ⤓ Opus 1674 kB { }
What was heard
mixed 95% · keyed-tone 5% · tone 407 Hz · keying 0.40 Hz depth 0.94 — dominant tone 407 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, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 40 dB — thanks to the operator. Receivers
Provenance
sha256 94489cf8458d6de868f78cc35f36916ca2fe846960321d4d909ae95c1f64fe74
source 06:38 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-24T0510Z-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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