NIL HEARDRECEPTION LOG

RAF VOLMET

tier A · voice

5450 kHz USB · 2026-09-23 04:14:05Z · 10:00 · received at Brettnach F57320

Spectrogram of RAF VOLMET, 5450 kHz USB, 2026-09-23 04:14:05Z, 10:00: voice 60% · mixed 37% · carrier 3% · tone 372 Hz · keying 0.95 Hz depth 0.76
spectrogram 0–6.0 kHz · analysis blocks: voice carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.3 MB ⤓ Opus 2515 kB { }
What was heard
voice 60% · mixed 37% · carrier 3% · tone 372 Hz · keying 0.95 Hz depth 0.76 — dominant tone 372 Hz, keyed at 0.95 Hz (depth 0.76). 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 42 dB — thanks to the operator. Receivers
Provenance
sha256 cca04f3ca943cdf4b8a5fa2895b049a7b436ab8e6e1d5dbf7e564ea07e36eb21
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T0414Z-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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