NIL HEARDRECEPTION LOG

XPB1 polytone ladder, 05:00 step

tier B · mixed

18451 kHz USB · 2026-09-23 04:59:31Z · 05:00 · received at Brettnach F57320

Spectrogram of XPB1 polytone ladder, 05:00 step, 18451 kHz USB, 2026-09-23 04:59:31Z, 05:00: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.0 MB ⤓ Opus 1514 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, Brettnach F57320 (JN39GG) · vertical · reported SNR 42 dB — thanks to the operator. Receivers
Provenance
sha256 c5b19438284d54cb219df31ed00e1fe9e5b3df784f264d1b3df865908ff9b949
source 05:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T0459Z-18451-xpb1-0500
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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