NIL HEARDRECEPTION LOG

XPB1 polytone ladder, 05:40 step

tier B · mixed

15851 kHz USB · 2026-10-06 05:39:05Z · 05:00 · received at Sedlcany, Czech Republic

Spectrogram of XPB1 polytone ladder, 05:40 step, 15851 kHz USB, 2026-10-06 05:39:05Z, 05:00: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.1 MB ⤓ Opus 1305 kB { }
What was heard
mixed 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Sedlcany, Czech Republic (JN79GO) · LW 40m · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 dfdb7a14fbeb0dfa392fa1624032129e4045101b19e4b0bf47b400d69c83e655
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0539Z-15851-xpb1-0540
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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