NIL HEARDRECEPTION LOG

UVB-76 "The Buzzer"

tier B · keyed-tone

4625 kHz USB · 2026-10-04 21:42:18Z · 05:00 · received at Brettnach F57320

Spectrogram of UVB-76 "The Buzzer", 4625 kHz USB, 2026-10-04 21:42:18Z, 05:00: keyed-tone 100% · tone 574 Hz · keying 0.30 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.2 MB ⤓ Opus 1305 kB { }
What was heard
keyed-tone 100% · tone 574 Hz · keying 0.30 Hz depth 0.96 — dominant tone 574 Hz, keyed at 0.3 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 44 dB — thanks to the operator. Receivers
Provenance
sha256 cdf465c9317cbb54fb2d8e76673b37da8d1d65b2dc14e3b1c1e2421a5756cd7d
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-04T2142Z-4625-uvb76-4625
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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