NIL HEARDRECEPTION LOG

SVO Olimpia Radio (Greece) CW marker

tier A · keyed-tone

8423.2 kHz USB · 2026-09-20 22:50:54Z · 10:00 · received at Bősárkány, Hungary

Spectrogram of SVO Olimpia Radio (Greece) CW marker, 8423.2 kHz USB, 2026-09-20 22:50:54Z, 10:00: keyed-tone 77% · carrier 23% · tone 800 Hz · keying 0.30 Hz depth 0.92
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.7 MB ⤓ Opus 2494 kB { }
What was heard
keyed-tone 77% · carrier 23% · tone 800 Hz · keying 0.30 Hz depth 0.92 — dominant tone 800 Hz, keyed at 0.3 Hz (depth 0.92). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Bősárkány, Hungary (JN87pq) · Fritzel FD4 windom (80 - 10 m) · reported SNR 35 dB — thanks to the operator. Receivers
Provenance
sha256 c4f3ad81e76ee1cb94576f01c2832aedbb2d071d25387ab7df972f5e8090817c
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T2250Z-8423.2-cw-svo-8424
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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