NIL HEARDRECEPTION LOG

DWD Pinneberg weather fax

tier A · carrier

7878.1 kHz USB · 2026-10-02 11:32:47Z · 04:01 · received at Heppen, Limburg, Belgium

Spectrogram of DWD Pinneberg weather fax, 7878.1 kHz USB, 2026-10-02 11:32:47Z, 04:01: carrier 54% · morse 15% · mixed 15% · data 8% · keyed-tone 8% · tone 2320 Hz · keying 4.00 Hz depth 0.72
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse data carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.0 MB ⤓ Opus 996 kB { }
What was heard
carrier 54% · morse 15% · mixed 15% · data 8% · keyed-tone 8% · tone 2320 Hz · keying 4.00 Hz depth 0.72 — dominant tone 2320 Hz, keyed at 4.0 Hz (depth 0.72). 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 33 dB — thanks to the operator. Receivers
Provenance
sha256 c34bf833a55a60ea54559e2f9a00170cafb9d69e328b5f1c5aa6ce61c066d244
source 04:01 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T1132Z-7878.1-wxfax-7880
Heard in the record
Reception Conditions Were Poor — “Whistler Mode”
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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