NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-19 22:43:10Z · 10:00 · received at Assen | Netherlands

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-19 22:43:10Z, 10:00: voice 57% · carrier 23% · keyed-tone 17% · mixed 3% · tone 369 Hz · keying 0.85 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.9 MB ⤓ Opus 2620 kB { }
What was heard
voice 57% · carrier 23% · keyed-tone 17% · mixed 3% · tone 369 Hz · keying 0.85 Hz depth 0.95 — dominant tone 369 Hz, keyed at 0.85 Hz (depth 0.95). 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 41 dB — thanks to the operator. Receivers
Provenance
sha256 08b662b40c2de2123239e637b4ba8f680aa072c6134d2d736b450442074d2989
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-19T2243Z-5450-volmet-5450
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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