I have an 80cm dish and just changed the lnb. I had an invacom 0.3[single] for the past 6 years or so, and replaced it with the inverto 0.1 and it seems to be one to two dbs stronger.I'm very happy with it. The old saying is though, if you want a stronger signal get a larger dish! But we all know that! Cheers..stickdrum