NIL HEARDRECEPTION LOG

T-Marker

tier B · mixed

4325 kHz USB · 2026-09-20 04:48:04Z · 10:00 · received at Brettnach F57320

Spectrogram of T-Marker, 4325 kHz USB, 2026-09-20 04:48:04Z, 10:00: mixed 93% · keyed-tone 3% · morse 3% · tone 2461 Hz · keying 0.60 Hz depth 0.89
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 11.4 MB ⤓ Opus 2486 kB { }
What was heard
mixed 93% · keyed-tone 3% · morse 3% · tone 2461 Hz · keying 0.60 Hz depth 0.89 — dominant tone 2461 Hz, keyed at 0.6 Hz (depth 0.89). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 43 dB — thanks to the operator. Receivers
Provenance
sha256 1eb6c793645d56d4755590ed26cf5013297cb3f59b5dd4cf1f2dca43190a0ddf
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T0448Z-4325-tmarker-4325
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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