NIL HEARDRECEPTION LOG

XPB1 polytone ladder, 05:10 step

tier B · mixed

18051 kHz USB · 2026-09-21 05:08:24Z · 01:18 · received at Assen | Netherlands

Spectrogram of XPB1 polytone ladder, 05:10 step, 18051 kHz USB, 2026-09-21 05:08:24Z, 01:18: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 1.3 MB ⤓ Opus 330 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 509edc0bc540a90619eede3e533a1f630ce43d3f39b1095f8e1f400b06bd2c3a
source 01:18 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T0508Z-18051-xpb1-0510
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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