NIL HEARDRECEPTION LOG

Rostov VOLMET (Russian) night

tier A · mixed

6617 kHz USB · 2026-10-06 00:53:16Z · 05:01 · received at Męcina, Poland

Spectrogram of Rostov VOLMET (Russian) night, 6617 kHz USB, 2026-10-06 00:53:16Z, 05:01: mixed 94% · keyed-tone 6% · tone 899 Hz · keying 1.42 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.4 MB ⤓ Opus 1257 kB { }
What was heard
mixed 94% · keyed-tone 6% · tone 899 Hz · keying 1.42 Hz depth 0.95 — dominant tone 899 Hz, keyed at 1.42 Hz (depth 0.95). 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 7d142d9d0bc800600b337510f0575ce2a8449a0c5929b03cc12dc648acc0f5aa
source 05:01 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0053Z-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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