NIL HEARDRECEPTION LOG

DWD Hamburg RTTY weather DDH7

tier A · data

7644.5 kHz USB · 2026-10-02 04:16:39Z · 10:00 · received at Assen | Netherlands

Spectrogram of DWD Hamburg RTTY weather DDH7, 7644.5 kHz USB, 2026-10-02 04:16:39Z, 10:00: data 83% · carrier 10% · keyed-tone 7% · tone 1274 Hz · keying 0.23 Hz depth 0.92
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone data carrier
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.5 MB ⤓ Opus 2507 kB { }
What was heard
data 83% · carrier 10% · keyed-tone 7% · tone 1274 Hz · keying 0.23 Hz depth 0.92 — dominant tone 1274 Hz, keyed at 0.23 Hz (depth 0.92). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Assen | Netherlands (JO32fx) · Active Loop antenna PAHGOR (serial nr: 001) built by ► PA0EBC ◀ 👍 · reported SNR 41 dB — thanks to the operator. Receivers
Provenance
sha256 a20b7604b144a46d3810e72d9663fc6872cb5ec96b08a4ded1b2eaa5c8da87da
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T0416Z-7644.5-rtty-7646
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.
Related