NIL HEARDRECEPTION LOG

SVJ4 Athens radiofax

tier A · mixed

4479.1 kHz USB · 2026-10-06 04:51:28Z · 05:54 · received at Sedlcany, Czech Republic

Spectrogram of SVJ4 Athens radiofax, 4479.1 kHz USB, 2026-10-06 04:51:28Z, 05:54: mixed 89% · voice 11% · keying 0.40 Hz depth 0.76
spectrogram 0–6.0 kHz · analysis blocks: voice mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.1 MB ⤓ Opus 1558 kB { }
What was heard
mixed 89% · voice 11% · keying 0.40 Hz depth 0.76, keyed at 0.4 Hz (depth 0.76). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Sedlcany, Czech Republic (JN79GO) · LW 40m · reported SNR 31 dB — thanks to the operator. Receivers
Provenance
sha256 1f7543380aee29f161a8d32d40e4e8202bbb12c44fc8742ac6f1ae1d7a95195c
source 05:54 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-06T0451Z-4479.1-wxfax-svj4-4481
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