My signal strength is always in the mid 70's, and I lose the signal during mid to heavy rain. Is this typical, or should I be getting a better signal? I think the installer was in a rush to get this job done, and it would seem to me that the signal strength should be in the mid 80's to 90's anyway. It this too much to be expeceted, or did the installer not do a very good job of aligning my antenna. I have only had directTV two months.