XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-09-18 21:34:50Z · 04:00 · received at Dae_Gu City, South Korea

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-09-18 21:34:50Z, 04:00: data 100% — spectrogram 0–6.0 kHz · analysis blocks: data

loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.3 MB ⤓ Opus 1001 kB { }

What was heard

data 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.

Receiver

KiwiSDR, Dae_Gu City, South Korea (PM45HV01) · 2m Collinear Antenna | 6m: 6-ele Yagi + 5/8 GP Antennas | HF: 85m Loop Antenna, 150m from ground · reported SNR 34 dB — thanks to the operator. Receivers

Provenance

sha256 a71bf2e529dc5e1a81c9a536cd6a88561fe79069235dfe9fe926d54eee545286
source 04:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-18T2134Z-6250-xsl-6250

Heard in the record

— linked once the record exists.

Notes

rig: XSL JMSDF Ichihara, QPSK 1500 Bd, USB, idle pattern sounds like a slot machine; freqs 4153/6250/6417/8313/8588 kHz, active since 2001 (sigidwiki, updated Oct 2025). Local time at TX 06:35 JST. https://www.sigidwiki.com/wiki/Japanese_Slot_Machine_(XSL)

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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