I recently purchased Zenega receiver for dishtv i connect it to my 8 feet existing dish for other satellite and got full signal result.i live in islamabad and want to install small size separate dish for the Dishtv package please tell me what size of dish i require to receive both nss6,insat4b on my zenega 1004is even in storms and heavy rains.Please also tell me is it good receiver or i have to replace it with some other model if available in Rwp/isb.