NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-26 08:35:45Z · 10:00 · received at Ireland

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-26 08:35:45Z, 10:00: voice 43% · carrier 30% · keyed-tone 27% · tone 372 Hz · keying 0.40 Hz depth 0.97
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.7 MB ⤓ Opus 2622 kB { }
What was heard
voice 43% · carrier 30% · keyed-tone 27% · tone 372 Hz · keying 0.40 Hz depth 0.97 — dominant tone 372 Hz, keyed at 0.4 Hz (depth 0.97). 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 30 dB — thanks to the operator. Receivers
Provenance
sha256 4f2b6a04f0dd5d91cf2a01a2f3f03792214d0341700ea367a7bd49edf31eaa32
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T0835Z-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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