Ok, thanks for your help.
One thing, what do I have to do to enter in Sationless mode?
To set the local Metar what I have to do is:
Control Panel ---> FTP & Connections METAR/NOAA ---> METAR Download ---> Select the Metar Station from the list ---> Tick "Use this METAR to update Weather Display's data" and "Use this METAR for local sky/icon conditions" ---> Set the switch to "METAR ON" ---> OK
It is correct?And Budgie, if you can check with your solar sensor if it works I will be very grateful with you.
So, if I have understood all correctly; I only need a PC with WD, the Solar Sensor, the USB Adaptor and the cables that Budgie has said in his post.
And it really does not need any calibration?
Finally, have the problems with the Solar Graphics that Breitling stated on this post been solved, or it will not happen usin the 1 wire solar sensor?http://www.weather-watch.com/smf/index.php/topic,22204.msg182036.html#msg182036
Sorry for being boring and tedious, but I want to be sure and have everything clear before buying or doing something.
Thanks again for your help.