NIL HEARDRECEPTION LOG

Samara VOLMET (Russian) night

tier A · mixed

6693 kHz USB · 2026-09-21 00:13:37Z · 05:01 · received at Fryslan, the Netherlands

Spectrogram of Samara VOLMET (Russian) night, 6693 kHz USB, 2026-09-21 00:13:37Z, 05:01: mixed 94% · keyed-tone 6% · tone 337 Hz · keying 1.42 Hz depth 0.94
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.3 MB ⤓ Opus 1253 kB { }
What was heard
mixed 94% · keyed-tone 6% · tone 337 Hz · keying 1.42 Hz depth 0.94 — dominant tone 337 Hz, keyed at 1.42 Hz (depth 0.94). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Fryslan, the Netherlands (JO23XE) · Inverted-v dipool, 2x45 m · reported SNR 38 dB — thanks to the operator. Receivers
Provenance
sha256 9b206579b09b54acb5a127831a6feb8cd2e90286a0c89a52de2e9ac36ea4da94
source 05:01 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T0013Z-6693-volmet-6693-samara
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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