well i have been promised by voom and pre-approved for the upgraded antenna and i have yet to see it yet, stay away from prostar digital they are worthless, i have had them here 3 times now and still have the same useless antenna, everytime they come here they give me the same answer, there is nothing they can do about the ota antenna that i have, if im getting something to come in with the a/b switch i might as well continue to use it instead of the useless diplexor, or supposed to be connected to the receiver for the ota channels and its still wont work thru the receiver, only with an a/b switch, lots of luck with voom, i do enjoy all the high def channels and sd channels they offer also.