Ambrogio, Thats OK, as I am no expert myself... I personally don't bother with the humidity information here in Michigan when the temp's are below freezing.. Only the wind chill factor... There is a lot of information on Dew Points and Humidity on the web. I only hope I was able to help out... 73's for now...

Dave Purola,
N8NTA

Quote Originally Posted by iw2fvo View Post
Hi Dave,
I red your explanation carefully: it is very clear to me now. I did not get those points before.
I thank you very much for your help on the matter.
Bye
73!
Ambrogio
IW2FVO
North italy