NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-09-21 15:08:52Z · 04:06 · received at Chiba, Japan

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-09-21 15:08:52Z, 04:06: data 46% · mixed 38% · morse 15% · tone 1160 Hz · keying 2.67 Hz depth 0.93
spectrogram 0–6.0 kHz · analysis blocks: morse data mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.3 MB ⤓ Opus 1019 kB { }
What was heard
data 46% · mixed 38% · morse 15% · tone 1160 Hz · keying 2.67 Hz depth 0.93 — dominant tone 1160 Hz, keyed at 2.67 Hz (depth 0.93). 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 259f609d69fa955dfef1cb6014615af4d6b09319639efbcf216b2d129ec76689
source 04:06 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T1508Z-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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