NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-09-25 08:48:41Z · 10:00 · received at Chiba, Japan

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-09-25 08:48:41Z, 10:00: data 90% · carrier 7% · keyed-tone 3% · tone 1160 Hz · keying 0.20 Hz depth 0.96
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.5 MB ⤓ Opus 2521 kB { }
What was heard
data 90% · carrier 7% · keyed-tone 3% · tone 1160 Hz · keying 0.20 Hz depth 0.96 — dominant tone 1160 Hz, keyed at 0.2 Hz (depth 0.96). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Chiba, Japan (QM05cq) · EndFed · reported SNR 27 dB — thanks to the operator. Receivers
Provenance
sha256 47ea20bbf0c71efd985a19722b61c8f96fc1b28eab5149b225fc93ed9143dee9
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-25T0848Z-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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