NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-10-03 20:20:17Z · 07:48 · received at Chiba, Japan

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-10-03 20:20:17Z, 07:48: data 75% · morse 21% · keyed-tone 4% · tone 1163 Hz · keying 1.32 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse data
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 8.7 MB ⤓ Opus 1939 kB { }
What was heard
data 75% · morse 21% · keyed-tone 4% · tone 1163 Hz · keying 1.32 Hz depth 0.95 — dominant tone 1163 Hz, keyed at 1.32 Hz (depth 0.95). 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 29 dB — thanks to the operator. Receivers
Provenance
sha256 384e657d5df6a74d3414b2697fe463cc02ddcc263c3ee3c3f06d447610869daf
source 07:48 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T2020Z-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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