NIL HEARDRECEPTION LOG

UVB-76 "The Buzzer"

tier B · keyed-tone

4625 kHz USB · 2026-09-26 18:08:52Z · 10:00 · received at Heppen, Limburg, Belgium

Spectrogram of UVB-76 "The Buzzer", 4625 kHz USB, 2026-09-26 18:08:52Z, 10:00: keyed-tone 63% · mixed 23% · carrier 10% · voice 3% · tone 530 Hz · keying 0.30 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 8.6 MB ⤓ Opus 2335 kB { }
What was heard
keyed-tone 63% · mixed 23% · carrier 10% · voice 3% · tone 530 Hz · keying 0.30 Hz depth 0.96 — dominant tone 530 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, Heppen, Limburg, Belgium (JO21oc) · Longwire 54m top 70m above sealevel · reported SNR 38 dB — thanks to the operator. Receivers
Provenance
sha256 e03e79a7c9681d745bfc11eb136d48732f2f6d55162a857a8bf445efa310e742
source 10:00 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T1808Z-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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