Probably around 5 - 8 points if you aim it and peak it towards 61.5. But it won't be the same on every transponder. I used a larger dish 1000.2 sat dish with a triple lnb holder and aimed it at 61.5 a few years back ,when I was on western arc and wanted to add 61.5 to the mix for locals off that sat. I saw an increase in my transponders and spotbeams anywhere from 5 - 8 points after using the 1000.2 sat dish instead of from a dish 500 sat dish with a single lnb . Usually the bigger the dish pan , the stronger the signal strength.