DWD Hamburg RTTY weather DDH7

tier A · data

7644.5 kHz USB · 2026-09-19 02:41:10Z · 06:00 · received at Brettnach F57320

Spectrogram of DWD Hamburg RTTY weather DDH7, 7644.5 kHz USB, 2026-09-19 02:41:10Z, 06:00: data 50% · morse 39% · carrier 11% · tone 1350 Hz · keying 0.25 Hz depth 0.89 — spectrogram 0–6.0 kHz · analysis blocks: morse data carrier

loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 6.4 MB ⤓ Opus 1492 kB { }

What was heard

data 50% · morse 39% · carrier 11% · tone 1350 Hz · keying 0.25 Hz depth 0.89 — dominant tone 1350 Hz, keyed at 0.25 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 39 dB — thanks to the operator. Receivers

Provenance

sha256 990a9a0fb59aa167f0b33ebce381895bdb5cf08e9cd4502d93618e4e9115f7f0
source 06:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-19T0241Z-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.

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