The reports contain temperature, pressure, and wind direction.

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   blinry (blinry@chaos.social)'s status on Monday, 11-Mar-2024 05:22:48 JST blinry

   in reply to

   22: Receive maritime weather reports

   The German Weather Service broadcasts maritime information throughout the day on various shortwave frequencies.

   They use a protocol called RTTY (radioteletype), and it took me a while how to decode it. But I found a neat little program called "fldigi": You can pipe audio to it, and then if you pick the correct settings, it happily transcribes the messages!

   Here's the station weather reports for the Baltic Sea and Northern Sea!