NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-20 12:30:24Z · 03:47 · received at Montmorillon 86500 FRANCE

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-20 12:30:24Z, 03:47: voice 67% · keyed-tone 33% · tone 413 Hz · keying 0.66 Hz depth 0.89
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 3.9 MB ⤓ Opus 985 kB { }
What was heard
voice 67% · keyed-tone 33% · tone 413 Hz · keying 0.66 Hz depth 0.89 — dominant tone 413 Hz, keyed at 0.66 Hz (depth 0.89). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Montmorillon 86500 FRANCE (JN05ot) · Antenna Shared Apex SAL 30 array solution · reported SNR 35 dB — thanks to the operator. Receivers
Provenance
sha256 0d03cbbb4a6742e50a1cfe2b47f5b8689b283cad8867ad65118b6f7ff4a2948e
source 03:47 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T1230Z-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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