NIL HEARDRECEPTION LOG

RBW41 Murmansk radiofax

tier A · mixed

5334.1 kHz USB · 2026-09-25 00:31:24Z · 06:19 · received at Muurame, Finland

Spectrogram of RBW41 Murmansk radiofax, 5334.1 kHz USB, 2026-09-25 00:31:24Z, 06:19: mixed 84% · carrier 10% · keyed-tone 5% · tone 360 Hz · keying 0.20 Hz depth 0.80
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.4 MB ⤓ Opus 1617 kB { }
What was heard
mixed 84% · carrier 10% · keyed-tone 5% · tone 360 Hz · keying 0.20 Hz depth 0.80 — dominant tone 360 Hz, keyed at 0.2 Hz (depth 0.8). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Muurame, Finland (KP22ud) · 160m horizontal loop · reported SNR 35 dB — thanks to the operator. Receivers
Provenance
sha256 ddf80f0b400b002b2a588bab1fc6665239e4e7c4da392ec451215aa3872d13b9
source 06:19 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-25T0031Z-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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