NIL HEARDRECEPTION LOG

GYA Northwood radiofax, 4610 kHz (night)

tier A · carrier

4608.1 kHz USB · 2026-10-02 05:31:16Z · 06:03 · received at Assen | Netherlands

Spectrogram of GYA Northwood radiofax, 4610 kHz (night), 4608.1 kHz USB, 2026-10-02 05:31:16Z, 06:03: carrier 32% · keyed-tone 32% · mixed 32% · data 5% · tone 2300 Hz · keying 0.25 Hz depth 0.73
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.6 MB ⤓ Opus 1499 kB { }
What was heard
carrier 32% · keyed-tone 32% · mixed 32% · data 5% · tone 2300 Hz · keying 0.25 Hz depth 0.73 — dominant tone 2300 Hz, keyed at 0.25 Hz (depth 0.73). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 38 dB — thanks to the operator. Receivers
Provenance
sha256 f68d99cfbf683f31def270b2a10211bc38d10c4f2ff3b70eec930cac1efee171
source 06:03 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T0531Z-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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