NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-10-06 14:53:02Z · 05:02 · received at Matsukawa, Fukushima JAPAN

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-10-06 14:53:02Z, 05:02: data 81% · keyed-tone 12% · morse 6% · tone 1178 Hz · keying 0.35 Hz depth 0.94
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse data
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.2 MB ⤓ Opus 1247 kB { }
What was heard
data 81% · keyed-tone 12% · morse 6% · tone 1178 Hz · keying 0.35 Hz depth 0.94 — dominant tone 1178 Hz, keyed at 0.35 Hz (depth 0.94). 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 31 dB — thanks to the operator. Receivers
Provenance
sha256 feb8712d7b5b719f2987159ffb090f8c219542b78aa08a5416555912f7ef2296
source 05:02 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T1453Z-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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