NIL HEARDRECEPTION LOG

Rostov VOLMET (Russian) night

tier A · voice

6617 kHz USB · 2026-09-21 00:25:56Z · 01:23 · received at Męcina, Poland

Spectrogram of Rostov VOLMET (Russian) night, 6617 kHz USB, 2026-09-21 00:25:56Z, 01:23: voice 80% · keyed-tone 20% · tone 495 Hz · keying 1.95 Hz depth 0.93
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 1.3 MB ⤓ Opus 373 kB { }
What was heard
voice 80% · keyed-tone 20% · tone 495 Hz · keying 1.95 Hz depth 0.93 — dominant tone 495 Hz, keyed at 1.95 Hz (depth 0.93). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Męcina, Poland (KN09gp) · EFHW 80m · reported SNR 25 dB — thanks to the operator. Receivers
Provenance
sha256 e8db27985dead71d13d0d3a2cb2e7147c462ee98de46f60d8ff03f7a68c3c95a
source 01:23 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T0025Z-6617-volmet-6617-rostov
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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