NIL HEARDRECEPTION LOG

DWD Pinneberg weather fax

tier A · carrier

3853.1 kHz USB · 2026-09-18 21:18:44Z · 04:00 · received at TREMOLAT (24), FRANCE

Spectrogram of DWD Pinneberg weather fax, 3853.1 kHz USB, 2026-09-18 21:18:44Z, 04:00: carrier 83% · keyed-tone 17% · tone 2317 Hz · keying 0.40 Hz depth 0.55
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.4 MB ⤓ Opus 1000 kB { }
What was heard
carrier 83% · keyed-tone 17% · tone 2317 Hz · keying 0.40 Hz depth 0.55 — dominant tone 2317 Hz, keyed at 0.4 Hz (depth 0.55). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, TREMOLAT (24), FRANCE (JN04ku) · Vertical pylon isolated 11 meters (ou Mini-Whip dual FET) · reported SNR 43 dB — thanks to the operator. Receivers
Provenance
sha256 5c9e1d8ec83289ca2e14e4b7727ba6c29b77d33df955d0238bc4f255d45635cd
source 04:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-18T2118Z-3853.1-fax-3855
Heard in the record
— linked once the record exists.
Notes

rig: DDH3 3855 kHz F1C 120 rpm IOC 576, white +425 / black -425 Hz. Dial 3853.1 USB -> black 1475 Hz, white 2325 Hz (decoder-standard). Slots 21:11 and 21:23 UTC per DWD fax schedule (22 May 2023). https://www.dwd.de/EN/specialusers/shipping/broadcast_en/broadcast_fax_052023_summer.pdf

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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