NIL HEARDRECEPTION LOG

Shannon VOLMET aviation weather

tier A · voice

8957 kHz USB · 2026-09-26 16:37:51Z · 06:22 · received at Heppen, Limburg, Belgium

Spectrogram of Shannon VOLMET aviation weather, 8957 kHz USB, 2026-09-26 16:37:51Z, 06:22: voice 70% · mixed 25% · keyed-tone 5% · tone 589 Hz · keying 0.50 Hz depth 0.77
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.9 MB ⤓ Opus 1485 kB { }
What was heard
voice 70% · mixed 25% · keyed-tone 5% · tone 589 Hz · keying 0.50 Hz depth 0.77 — dominant tone 589 Hz, keyed at 0.5 Hz (depth 0.77). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Heppen, Limburg, Belgium (JO21oc) · Longwire 54m top 70m above sealevel · reported SNR 38 dB — thanks to the operator. Receivers
Provenance
sha256 11bf802ed3e4d5c6db77e514588aea9253857cbf639d599042112d4cfca9819f
source 06:22 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T1637Z-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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