According to the spec sheet for the Antesky 1.8 dish, 1.8 meter,1.8m antenna,1.8m dish-L,ka,S,X,C,KU Band-vsat antenna , it has a higher gain than the Prodelin / General Dynamics, Andrew , Channel Master, and the Global Skyware 1.8 dishes.
How in the world could it have 1.5 - 2dB more gain...