NIL HEARDRECEPTION LOG

XPB1 polytone ladder, 05:20 step

tier B · mixed

17451 kHz USB · 2026-09-26 05:18:30Z · 05:00 · received at Assen | Netherlands

Spectrogram of XPB1 polytone ladder, 05:20 step, 17451 kHz USB, 2026-09-26 05:18:30Z, 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 1237 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, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 39 dB — thanks to the operator. Receivers
Provenance
sha256 825ca2343563766349fd53b9ac094e23558884afe8684459f098603f53e82d72
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T0518Z-17451-xpb1-0520
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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