NIL HEARDRECEPTION LOG

Rostov VOLMET (Russian) night

tier A · mixed

6617 kHz USB · 2026-10-03 15:22:49Z · 05:00 · received at Męcina, Poland

Spectrogram of Rostov VOLMET (Russian) night, 6617 kHz USB, 2026-10-03 15:22:49Z, 05:00: mixed 87% · carrier 7% · voice 7% · tone 2001 Hz · keying 2.25 Hz depth 0.72
spectrogram 0–6.0 kHz · analysis blocks: voice carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.4 MB ⤓ Opus 1227 kB { }
What was heard
mixed 87% · carrier 7% · voice 7% · tone 2001 Hz · keying 2.25 Hz depth 0.72 — dominant tone 2001 Hz, keyed at 2.25 Hz (depth 0.72). 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 28 dB — thanks to the operator. Receivers
Provenance
sha256 3b9f6dc6c7e2ee08435e759b93c7506da32d37e39aed0a816d67c7a9f5d8e0e8
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T1522Z-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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