NIL HEARDRECEPTION LOG

The Pip

tier B · mixed

3756 kHz USB · 2026-09-21 17:29:01Z · 10:00 · received at Heppen, Limburg, Belgium

Spectrogram of The Pip, 3756 kHz USB, 2026-09-21 17:29:01Z, 10:00: mixed 50% · voice 43% · keyed-tone 3% · carrier 3% · tone 508 Hz · keying 0.70 Hz depth 0.75
spectrogram 0–6.0 kHz · analysis blocks: voice keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.2 MB ⤓ Opus 2288 kB { }
What was heard
mixed 50% · voice 43% · keyed-tone 3% · carrier 3% · tone 508 Hz · keying 0.70 Hz depth 0.75 — dominant tone 508 Hz, keyed at 0.7 Hz (depth 0.75). 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 37 dB — thanks to the operator. Receivers
Provenance
sha256 6e7e7e157a0c429f6c6a76c39beab408484c474f161b9a0586df25823f0e47e6
source 10:00 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T1729Z-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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