NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-09-26 09:12:26Z · 07:50 · received at Chiba, Japan

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-09-26 09:12:26Z, 07:50: data 92% · morse 4% · carrier 4% · tone 1160 Hz · keying 0.25 Hz depth 0.94
spectrogram 0–6.0 kHz · analysis blocks: morse data carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 8.3 MB ⤓ Opus 1973 kB { }
What was heard
data 92% · morse 4% · carrier 4% · tone 1160 Hz · keying 0.25 Hz depth 0.94 — dominant tone 1160 Hz, keyed at 0.25 Hz (depth 0.94). 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 30 dB — thanks to the operator. Receivers
Provenance
sha256 c6fbe0ac209af0c19012a9cb1ddafab3f1cecb1799bd6a1deda60b5b333e4152
source 07:50 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T0912Z-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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