NIL HEARDRECEPTION LOG

SVO Olimpia Radio (Greece) CW marker

tier A · keyed-tone

8423.2 kHz USB · 2026-10-03 05:31:30Z · 06:15 · received at Near Viverone Lake, Italy

Spectrogram of SVO Olimpia Radio (Greece) CW marker, 8423.2 kHz USB, 2026-10-03 05:31:30Z, 06:15: keyed-tone 90% · carrier 10% · tone 800 Hz · keying 0.30 Hz depth 0.99
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.0 MB ⤓ Opus 1670 kB { }
What was heard
keyed-tone 90% · carrier 10% · tone 800 Hz · keying 0.30 Hz depth 0.99 — dominant tone 800 Hz, keyed at 0.3 Hz (depth 0.99). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Near Viverone Lake, Italy (JN45ak) · ANTENNA: 60 meters LW but when I'm using my TX the Kiwi rx antenna is swichted to a LZ1AQ Loop- · reported SNR 32 dB — thanks to the operator. Receivers
Provenance
sha256 111b3c92267613eff53ae0ece093edfff0caf5bd43296c325cb56fc0c7bd11f8
source 06:15 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T0531Z-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.
Related