I 'may' need a preamp because of the cable run being long on my DB8 antenna. I haven't found a permanent place for a good signal but am still toying with it. I see for preamps there's a box you hook on to the antenna itself then you need to power it further down the line. Thing is, I may need to hook up the antenna through my grounding block outside the house (diplexor). Can the powerpack for the preamp sit in my unheated attic? the set up would be antenna----preamp----power inserter (sitting right inside an attic window but obviously getting very cold in PA winters)----then to a diplexor...then to my grounding block....then of course a diplexor in back of the HD tivo. I'd really like if the entire pre amp setup could be outside as I have an outlet there, but are they made for that?