NIL HEARDRECEPTION LOG

RBW41 Murmansk radiofax

tier A · mixed

5334.1 kHz USB · 2026-09-22 20:02:41Z · 10:00 · received at Sweden

Spectrogram of RBW41 Murmansk radiofax, 5334.1 kHz USB, 2026-09-22 20:02:41Z, 10:00: mixed 60% · keyed-tone 13% · data 13% · carrier 13% · tone 325 Hz · keying 0.20 Hz depth 0.82
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.1 MB ⤓ Opus 2550 kB { }
What was heard
mixed 60% · keyed-tone 13% · data 13% · carrier 13% · tone 325 Hz · keying 0.20 Hz depth 0.82 — dominant tone 325 Hz, keyed at 0.2 Hz (depth 0.82). 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 37 dB — thanks to the operator. Receivers
Provenance
sha256 69e728347c912a32bba9da2440061e7f678091686f76f91de18bdf9bfa1564ff
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-22T2002Z-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.
Related