NIL HEARDRECEPTION LOG

Rostov VOLMET (Russian) night

tier A · mixed

6617 kHz USB · 2026-10-05 22:23:12Z · 05:00 · received at Męcina, Poland

Spectrogram of Rostov VOLMET (Russian) night, 6617 kHz USB, 2026-10-05 22:23:12Z, 05:00: mixed 47% · voice 47% · keyed-tone 7% · tone 513 Hz · keying 2.25 Hz depth 0.75
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.3 MB ⤓ Opus 1261 kB { }
What was heard
mixed 47% · voice 47% · keyed-tone 7% · tone 513 Hz · keying 2.25 Hz depth 0.75 — dominant tone 513 Hz, keyed at 2.25 Hz (depth 0.75). 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 27 dB — thanks to the operator. Receivers
Provenance
sha256 9af8ae88fbd78ed8687500bb3507d99c755304b86447a6eef4448f7b982ecb36
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-05T2223Z-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.
Related