RBW41 Murmansk radiofax

tier A · keyed-tone

5334.1 kHz USB · 2026-09-24 18:41:27Z · 10:00 · received at Esbjerg, Denmark

Spectrogram of RBW41 Murmansk radiofax, 5334.1 kHz USB, 2026-09-24 18:41:27Z, 10:00: keyed-tone 53% · carrier 17% · mixed 17% · data 10% · morse 3% · tone 325 Hz · keying 0.30 Hz depth 0.84 — spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse data carrier mixed

loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.4 MB ⤓ Opus 2513 kB { }

What was heard

keyed-tone 53% · carrier 17% · mixed 17% · data 10% · morse 3% · tone 325 Hz · keying 0.30 Hz depth 0.84 — dominant tone 325 Hz, keyed at 0.3 Hz (depth 0.84). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.

Receiver

KiwiSDR, Esbjerg, Denmark (JO65gq) · Longwire 20 meters north-south · reported SNR 35 dB — thanks to the operator. Receivers

Provenance

sha256 a96bbe330e98555cff99a0dab141c5192a5704f9d268f6e18426cd650ba59a80
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-24T1841Z-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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