On page 1 of your post here I provided the link to Winegard Direct , I tried it and it works fine.
Here it is again ,
http://www.winegarddirect.com.
I see that ,
http://www.solidsignal.com is selling the HD7084P for Less money then the HD7698P.
The HD7084P receives ALL the channels , VHF low band 2 thru 6 , VHF high band 7 thru 13 , UHF band 14 thru 69.
The HD7698P antenna is designed to receive , VHF high band 7 thru 13 , UHF band 14 thru 69.
NO the VHF low band channels ->Will Not Disrupt<- the reception of the converter boxes and Tv's.
As a matter of cold hard fact , converter boxes and Tv's are in fact made to receive the Tv channels , VHF low band channels 2 thru 6 , VHF high band 7 thru 13 , UHF band 14 thru 69.
And that is 100% the truth.