As always , Attics ARE NOT a reception friendly environment , and Never Will Be a reception friendly environment.
The signals of ,
WIVB-DT 39.
WKBW-DT 38.
WBBZ-TV 7.
Are far to weak of signal strength to be received reliably with a antenna in the attic.
It won't happen.
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Even with a -->Big Antenna<-- above the roof with nothing blocking reception.
Reception may or may not be reliable.
WIVB-DT 39 , is 95.5 miles distant.
WKBW-DT 38 , is 96.9 miles distant.
WBBZ-TV 7 , is 98 miles distant.
Add to that the Canada Digital Tv stations are strong signal strength and very close to the direction of the weak signal strength USA Digital stations , 28 degree magnetic compass.
Makes the use of a preamp border line to overload of the preamp.
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If you will like to try for reception ,
Above The Roof install a Winegard HD7698P antenna with and without a Antennas Direct CPA-19 preamp aimed at about 158 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Some common roof mounts are , tripod antenna mount , eave antenna mount , chimney antenna mount.
Here are places to buy antennas and etc. ,
http://www.saveandreplay.com ,
http://www.trentondistributors.com.
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As always trees and tree leaves do a real fine job of reducing or blocking reception and so do buildings and other obstructions.
It is best to install the antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception.
The Tv Must Channel Scan for the Digital Broadcast Tv Channels , sometimes named the 'Air Channels' or '
Antenna Channels' in the Tv setup menu because the Tv transmissions travel through the air from the transmitting antenna to the receiving antenna.
DO NOT channel scan for cable tv channels.
