NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-10-04 20:20:55Z · 10:00 · received at Brettnach F57320

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-10-04 20:20:55Z, 10:00: voice 53% · keyed-tone 27% · carrier 20% · tone 419 Hz · keying 0.68 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.8 MB ⤓ Opus 2659 kB { }
What was heard
voice 53% · keyed-tone 27% · carrier 20% · tone 419 Hz · keying 0.68 Hz depth 0.96 — dominant tone 419 Hz, keyed at 0.68 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 45 dB — thanks to the operator. Receivers
Provenance
sha256 64d9fccfb21280a74314998ff70228821b877d52a4c51cfb313b4845493f663b
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-04T2020Z-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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