NIL HEARDRECEPTION LOG

The Pip

tier B · voice

3756 kHz USB · 2026-09-19 18:38:54Z · 10:00 · received at Hamburg, Drage, 🇩🇪 Germany 🇩🇪

Spectrogram of The Pip, 3756 kHz USB, 2026-09-19 18:38:54Z, 10:00: voice 50% · keyed-tone 20% · carrier 17% · mixed 13% · tone 817 Hz · keying 0.40 Hz depth 0.87
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.0 MB ⤓ Opus 2667 kB { }
What was heard
voice 50% · keyed-tone 20% · carrier 17% · mixed 13% · tone 817 Hz · keying 0.40 Hz depth 0.87 — dominant tone 817 Hz, keyed at 0.4 Hz (depth 0.87). 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 41 dB — thanks to the operator. Receivers
Provenance
sha256 e022900c3733dddc8d6e98bbf2ee21cc6b16d24582de232c792d43e9a2c31b7d
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-19T1838Z-3756-pip-3756
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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