NIL HEARDRECEPTION LOG

GYA Northwood radiofax, 4610 kHz (night)

tier A · morse

4608.1 kHz USB · 2026-10-01 22:58:59Z · 05:17 · received at Montmorillon 86500 FRANCE

Spectrogram of GYA Northwood radiofax, 4610 kHz (night), 4608.1 kHz USB, 2026-10-01 22:58:59Z, 05:17: morse 50% · mixed 25% · keyed-tone 25% · tone 2338 Hz · keying 3.02 Hz depth 0.83
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 5.8 MB ⤓ Opus 1312 kB { }
What was heard
morse 50% · mixed 25% · keyed-tone 25% · tone 2338 Hz · keying 3.02 Hz depth 0.83 — dominant tone 2338 Hz, keyed at 3.02 Hz (depth 0.83). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Montmorillon 86500 FRANCE (JN05ot) · Antenna Shared Apex SAL 30 array solution · reported SNR 43 dB — thanks to the operator. Receivers
Provenance
sha256 1254040552bff5570f4a9623c33ac427231ac3f392f1acc49ac028e148b2dc8b
source 05:17 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-01T2258Z-4608.1-wxfax-gya-4610
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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