::laugh:: What ever man, I wasn't lieing. I don't know what kind of "booster" you have that increasing a RX of 4.5dh. I was thinking you meant a inhouse amp, which usually increases by 10-20dB, something like this
http://www.google.com/products/catalog?hl=en&q=coax+amp&um=1&ie=UTF-8&cid=14519722769657818361&ei=gaZmTMjzK4e4sQP3_L2ZDQ&sa=X&oi=product_catalog_result&ct=result&resnum=1&ved=0CCYQ8wIwAA#
But like I said, if it works for you, cool. But it isn't best case.