NIL HEARDRECEPTION LOG

Rostov VOLMET (Russian) night

tier A · mixed

6617 kHz USB · 2026-09-23 00:23:14Z · 04:06 · received at Jędrzejów

Spectrogram of Rostov VOLMET (Russian) night, 6617 kHz USB, 2026-09-23 00:23:14Z, 04:06: mixed 77% · voice 23% · keying 1.91 Hz depth 0.74
spectrogram 0–6.0 kHz · analysis blocks: voice mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.4 MB ⤓ Opus 1028 kB { }
What was heard
mixed 77% · voice 23% · keying 1.91 Hz depth 0.74, keyed at 1.91 Hz (depth 0.74). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Jędrzejów (KO00) · Delta SP7LA · reported SNR 28 dB — thanks to the operator. Receivers
Provenance
sha256 862ae694da1b419c91bbc36e31bde4c68e323cc0e5f1a020db85ca094c777c74
source 04:06 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T0023Z-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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