Reception of weather report via short wave

Today I tried to receive the weather forecasts broadcast by DWD
(Deutscher Wetterdienst) on 4583, 7646, and 10100.8 kHz in RTTY (F1B).
I got the clearest signal on 4583 kHz. I tried this before with the buit-in telescopic antenna, but the signal was not clear enough so I got lot of errors. This time I tried a 20 m long wire antenna made of enameled copper wire. That antenna produced such a strong signal that I even had to switch off DX mode on the receiver (a Sangean ATS-505) to avoid overloading it.

The decoding was done with my laptop running a piece of software called
MMTTY. The software was designed to run under windows, but also works
fine under Linux using WINE.

I will not post the results here because I think the DWD wouldn't like that,
as you can see from the following piece of received text:

THE BROADCASTING OF METEOROLOGICAL INFORMATION FROM
THE DEUTSCHER WETTERDIENST VIA ITS RTTY TRANSMITTERS
DDH7, DDK2, DDK9, AS WELL AS DDH8, DDH9 AND DDH47,
SHALL SERVE TO SAFEGUARD SAFETY AT SEA ONLY, WITHIN
THE FRAMEWORK OF THE INTERNATIONAL SOLAS AGREEMENT.
ANY PASSING ON OF THE INFORMATION OR ITS FURTHER USE,
ESPECIALLY COMMERCIAL, SHALL NOT BE PERMITTED.

Category:

Science & Technology

Tags:

• weather
• dwd
• rtty
• short
• wave
• sangean
• ats
• 505
• long
• wire

[Xplosive2009]

Please make a "howto" for this...

How can I decode this signals?

What profile may i use? (FTT demodulator?)

What another softwares & hardwares required for this action? (e.g.: cables etc etc..)

Is the radio & the microphone enough for this? (so you dont need any cables between the radio & the pc?)

Thanks for your help! Have a nice day!