Thanks for reponding:
All:
Thanks for your comments with reference to FCC and antennas, and I had read about this somewhat elsewhere.
GroundUrMast and teleview:
I appreciate your feedback with respect to the Winegard HD7696P and pre-amp. I'll research.
elmo:
I also see plenty of Dish and Direct TV. Given my signal direction to Seattle I think I may be able to install an eave setup, which takes the antenna out of the acttic. I'd consider strapping the unit onto my chimney above the roofline but cannot honestly see myself climbing onto a second story shake roof this time of year; I'll see how far my extension ladder reaches from the side of the house, and think a low-profile install is possible pointing towards the back of the house.
Any installers in the Seattle area interested in this kind of work?
Thanks,
Jocko