Pretty much what the title says, but signal looks pretty good when weather is fair or good. So far today I lost signal for some HD channels about 4-5 time atleast. Now of course we are getting storms here in P.A today, but the rain has not been extremely heavy. I posted my signal readings on here about a month or 2 ago and was told they look pretty good. I was told it could be a loose coax connection at the LNB and also a faulty LNB. The question is how to tell if the LNB is in fact faulty or not?