NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-20 01:31:44Z · 02:26 · received at Montmorillon 86500 FRANCE

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-20 01:31:44Z, 02:26: voice 50% · carrier 25% · mixed 12% · keyed-tone 12% · tone 337 Hz · keying 0.95 Hz depth 0.94
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 2.4 MB ⤓ Opus 634 kB { }
What was heard
voice 50% · carrier 25% · mixed 12% · keyed-tone 12% · tone 337 Hz · keying 0.95 Hz depth 0.94 — dominant tone 337 Hz, keyed at 0.95 Hz (depth 0.94). 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 43 dB — thanks to the operator. Receivers
Provenance
sha256 6765bbf6b9fa3f35f4997b57d695b5597c5afbfa4a1a2ed7e965ffb64b4129c8
source 02:26 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0131Z-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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