NIL HEARDRECEPTION LOG

M23 slow morse, evening slot

tier B · mixed

4879.2 kHz USB · 2026-10-02 18:58:10Z · 01:37 · received at Assen | Netherlands

Spectrogram of M23 slow morse, evening slot, 4879.2 kHz USB, 2026-10-02 18:58:10Z, 01:37: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 1.7 MB ⤓ Opus 412 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, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 42 dB — thanks to the operator. Receivers
Provenance
sha256 415a50e432b8c2d7823e93dde78591fccf08a358c5907f28766f15d2a0884c3f
source 01:37 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T1858Z-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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