NIL HEARDRECEPTION LOG

Samara VOLMET (Russian) night

tier A · mixed

6693 kHz USB · 2026-10-03 18:13:13Z · 05:00 · received at Heppen, Limburg, Belgium

Spectrogram of Samara VOLMET (Russian) night, 6693 kHz USB, 2026-10-03 18:13:13Z, 05:00: mixed 33% · keyed-tone 27% · voice 27% · carrier 13% · tone 3 Hz · keying 0.38 Hz depth 0.86
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.6 MB ⤓ Opus 1148 kB { }
What was heard
mixed 33% · keyed-tone 27% · voice 27% · carrier 13% · tone 3 Hz · keying 0.38 Hz depth 0.86 — dominant tone 3 Hz, keyed at 0.38 Hz (depth 0.86). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Heppen, Limburg, Belgium (JO21oc) · Longwire 54m top 70m above sealevel · reported SNR 39 dB — thanks to the operator. Receivers
Provenance
sha256 5875a50c76c4379499ed07662b9398f3bb308ddc9271ab078bed071a64d60496
source 05:00 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T1813Z-6693-volmet-6693-samara
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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