NIL HEARDRECEPTION LOG

RBW41 Murmansk radiofax

tier A · mixed

5334.1 kHz USB · 2026-10-01 18:30:02Z · 07:21 · received at Sweden

Spectrogram of RBW41 Murmansk radiofax, 5334.1 kHz USB, 2026-10-01 18:30:02Z, 07:21: mixed 96% · morse 4% · tone 325 Hz · keying 0.45 Hz depth 0.86
spectrogram 0–6.0 kHz · analysis blocks: morse mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 7.4 MB ⤓ Opus 1867 kB { }
What was heard
mixed 96% · morse 4% · tone 325 Hz · keying 0.45 Hz depth 0.86 — dominant tone 325 Hz, keyed at 0.45 Hz (depth 0.86). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Sweden (JO78mn) · 41 m EFHW · reported SNR 36 dB — thanks to the operator. Receivers
Provenance
sha256 d67f82b179ce77f38d88a7c9a69f718d0d995a007eb95f46a14cec7f90396a57
source 07:21 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-01T1830Z-5334.1-wxfax-rbw-5336
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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