NIL HEARDRECEPTION LOG

GYA Northwood radiofax, 8040 kHz (day)

tier A · morse

8038.1 kHz USB · 2026-09-26 15:59:53Z · 10:00 · received at Heppen, Limburg, Belgium

Spectrogram of GYA Northwood radiofax, 8040 kHz (day), 8038.1 kHz USB, 2026-09-26 15:59:53Z, 10:00: morse 43% · keyed-tone 30% · carrier 23% · data 3% · tone 2300 Hz · keying 2.00 Hz depth 0.77
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse data carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.6 MB ⤓ Opus 2380 kB { }
What was heard
morse 43% · keyed-tone 30% · carrier 23% · data 3% · tone 2300 Hz · keying 2.00 Hz depth 0.77 — dominant tone 2300 Hz, keyed at 2.0 Hz (depth 0.77). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Heppen, Limburg, Belgium (JO21oc) · Longwire 54m top 70m above sealevel · reported SNR 33 dB — thanks to the operator. Receivers
Provenance
sha256 052e4dd05ed78a9c8c58f4c1a547786a4311e1ca571de27d2064d526e2e4e633
source 10:00 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-26T1559Z-8038.1-wxfax-gya-8040
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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