NIL HEARDRECEPTION LOG

RBW41 Murmansk radiofax

tier A · mixed

5334.1 kHz USB · 2026-09-26 03:01:09Z · 10:00 · received at Sweden

Spectrogram of RBW41 Murmansk radiofax, 5334.1 kHz USB, 2026-09-26 03:01:09Z, 10:00: mixed 97% · keyed-tone 3% · tone 325 Hz · keying 0.40 Hz depth 0.90
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.9 MB ⤓ Opus 2528 kB { }
What was heard
mixed 97% · keyed-tone 3% · tone 325 Hz · keying 0.40 Hz depth 0.90 — dominant tone 325 Hz, keyed at 0.4 Hz (depth 0.9). 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 30 dB — thanks to the operator. Receivers
Provenance
sha256 e8219b9c0d6739cabf27ab8bde57868834bf0a0c4fd41e1fdbdd30ebf2460e9c
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T0301Z-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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