NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-20 20:20:39Z · 10:00 · received at Montmorillon 86500 FRANCE

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-20 20:20:39Z, 10:00: voice 40% · keyed-tone 30% · carrier 20% · mixed 10% · tone 413 Hz · keying 0.20 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.0 MB ⤓ Opus 2592 kB { }
What was heard
voice 40% · keyed-tone 30% · carrier 20% · mixed 10% · tone 413 Hz · keying 0.20 Hz depth 0.96 — dominant tone 413 Hz, keyed at 0.2 Hz (depth 0.96). 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 46 dB — thanks to the operator. Receivers
Provenance
sha256 d705143d89d2f839b20cc04c88d25098bb325d0bc5dc5032b624ad4e135ce439
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T2020Z-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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