NIL HEARDRECEPTION LOG

XSL "Japanese Slot Machine"

tier B · data

6250 kHz USB · 2026-09-25 03:10:04Z · 10:00 · received at Dae_Gu City, South Korea

Spectrogram of XSL "Japanese Slot Machine", 6250 kHz USB, 2026-09-25 03:10:04Z, 10:00: data 67% · morse 13% · mixed 13% · carrier 7% · tone 1157 Hz · keying 10.71 Hz depth 0.89
spectrogram 0–6.0 kHz · analysis blocks: morse data carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 11.0 MB ⤓ Opus 2475 kB { }
What was heard
data 67% · morse 13% · mixed 13% · carrier 7% · tone 1157 Hz · keying 10.71 Hz depth 0.89 — dominant tone 1157 Hz, keyed at 10.71 Hz (depth 0.89). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Dae_Gu City, South Korea (PM45HV01) · 2m Collinear Antenna | 6m: 6-ele Yagi + 5/8 GP Antennas | HF: 85m Loop Antenna, 150m from ground · reported SNR 29 dB — thanks to the operator. Receivers
Provenance
sha256 b250b1c1dddc70e48fc69cce570412fb14c4250094109f959630e4551a88bb63
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-25T0310Z-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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