NIL HEARDRECEPTION LOG

SVO Olimpia Radio (Greece) CW marker

tier A · mixed

8423.2 kHz USB · 2026-09-26 21:34:24Z · 04:44 · received at Lower Austria / Austria

Spectrogram of SVO Olimpia Radio (Greece) CW marker, 8423.2 kHz USB, 2026-09-26 21:34:24Z, 04:44: mixed 93% · keyed-tone 7% · tone 2215 Hz · keying 1.20 Hz depth 0.91
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.1 MB ⤓ Opus 1170 kB { }
What was heard
mixed 93% · keyed-tone 7% · tone 2215 Hz · keying 1.20 Hz depth 0.91 — dominant tone 2215 Hz, keyed at 1.2 Hz (depth 0.91). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Lower Austria / Austria (JN78sh) · Cross-Loop and Activ Antenna Amplifier by LZ1AQ Model AAA-1C · reported SNR 30 dB — thanks to the operator. Receivers
Provenance
sha256 10c993b9e1d702b3cd7f0edcd04b4f732008e937439cc461d9e1f22c85cc1a27
source 04:44 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T2134Z-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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