NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-09-23 09:02:00Z · 05:38 · received at Osaka, Japan

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-09-23 09:02:00Z, 05:38: data 88% · morse 12% · tone 1160 Hz · keying 2.62 Hz depth 0.92
spectrogram 0–6.0 kHz · analysis blocks: morse data
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.0 MB ⤓ Opus 1417 kB { }
What was heard
data 88% · morse 12% · tone 1160 Hz · keying 2.62 Hz depth 0.92 — dominant tone 1160 Hz, keyed at 2.62 Hz (depth 0.92). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Osaka, Japan (PM74su) · ΔLOOPX(Handmade Loop Antenna Non-synchronized mode) 250m above sea level · reported SNR 25 dB — thanks to the operator. Receivers
Provenance
sha256 7864b34e10010b073278bbf3f0c04fb92ba3067598f6ad9eed3cbbba94865301
source 05:38 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-23T0902Z-6250-xsl-6250
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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