NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-25 08:00:53Z · 03:46 · received at Ireland

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-25 08:00:53Z, 03:46: voice 67% · keyed-tone 25% · mixed 8% · tone 369 Hz · keying 0.80 Hz depth 0.89
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 3.7 MB ⤓ Opus 968 kB { }
What was heard
voice 67% · keyed-tone 25% · mixed 8% · tone 369 Hz · keying 0.80 Hz depth 0.89 — dominant tone 369 Hz, keyed at 0.8 Hz (depth 0.89). 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 31 dB — thanks to the operator. Receivers
Provenance
sha256 7cc4686f4fc3aa23cf1351082c33ff8fa18a4ac75c3139b519ea4ce5a858888b
source 03:46 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-25T0800Z-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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