NIL HEARDRECEPTION LOG

RBW41 Murmansk radiofax

tier A · mixed

5334.1 kHz USB · 2026-10-02 19:15:02Z · 02:44 · received at Sweden

Spectrogram of RBW41 Murmansk radiofax, 5334.1 kHz USB, 2026-10-02 19:15:02Z, 02:44: mixed 56% · keyed-tone 44% · tone 390 Hz · keying 0.22 Hz depth 0.81
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 2.7 MB ⤓ Opus 714 kB { }
What was heard
mixed 56% · keyed-tone 44% · tone 390 Hz · keying 0.22 Hz depth 0.81 — dominant tone 390 Hz, keyed at 0.22 Hz (depth 0.81). 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 38 dB — thanks to the operator. Receivers
Provenance
sha256 3d622affefe32e2c2a860daa39d295f5f029c292eeef56eec0292424f9a134b0
source 02:44 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T1915Z-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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