NIL HEARDRECEPTION LOG

M23 slow morse, evening slot

tier B · mixed

4879.2 kHz USB · 2026-09-21 18:58:27Z · 01:17 · received at Alvito, Italy 0-30 MHz Frequencies

Spectrogram of M23 slow morse, evening slot, 4879.2 kHz USB, 2026-09-21 18:58:27Z, 01:17: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 1.4 MB ⤓ Opus 324 kB { }
What was heard
mixed 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Alvito, Italy 0-30 MHz Frequencies (JN61vq) · G5RV Full Size Dir. N/S · reported SNR 41 dB — thanks to the operator. Receivers
Provenance
sha256 d15067ff069c7b895fb8437543376407a5ca3cd319cd004e3789d55ff6e0a117
source 01:17 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T1858Z-4879.2-m23-4880
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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