NIL HEARDRECEPTION LOG

The Squeaky Wheel

tier B · keyed-tone

3363.5 kHz USB · 2026-09-19 21:05:39Z · 10:00 · received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪

Spectrogram of The Squeaky Wheel, 3363.5 kHz USB, 2026-09-19 21:05:39Z, 10:00: keyed-tone 53% · mixed 37% · carrier 10% · tone 366 Hz · keying 0.75 Hz depth 0.95
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.3 MB ⤓ Opus 2644 kB { }
What was heard
keyed-tone 53% · mixed 37% · carrier 10% · tone 366 Hz · keying 0.75 Hz depth 0.95 — dominant tone 366 Hz, keyed at 0.75 Hz (depth 0.95). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Hamburg, Drage, 🇩🇪 Germany 🇩🇪 (JO53dk) · VLF broadband vertical V1.2 08/26 · reported SNR 43 dB — thanks to the operator. Receivers
Provenance
sha256 b34acc548d9f27742941e5b85743344a20175caa98c1e06c9f51d19e68fe8d0a
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-19T2105Z-3363.5-squeaky-3363
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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