NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-10-02 12:20:02Z · 10:00 · received at Matsukawa, Fukushima JAPAN

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-10-02 12:20:02Z, 10:00: data 67% · mixed 20% · morse 10% · carrier 3% · tone 1181 Hz · keying 0.50 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: morse data carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.4 MB ⤓ Opus 2482 kB { }
What was heard
data 67% · mixed 20% · morse 10% · carrier 3% · tone 1181 Hz · keying 0.50 Hz depth 0.95 — dominant tone 1181 Hz, keyed at 0.5 Hz (depth 0.95). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Matsukawa, Fukushima JAPAN (QM07FQ) · G5RV · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 e7927bc6779331dc9bd4cc2ff9b7fb36581cd0c6729ca7265c5740f4d2b1d083
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T1220Z-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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