Indoor Tv antenna reception is not a reception friendly environment and never will be a reception friendly environment.
The building construction that is the best for indoor antenna Tv reception is , wood with wood or vinyl siding and a composition shingle roof.
The following is a - Non complete list - of building construction that will reduce or block Tv reception. Concrete , concrete blocks , bricks , big rocks for walls , metal siding , metal roof , metal backed insulation , stucko Wire , solar panels , tile roof , concrete shingles.
The groups of Digital Tv stations are to the , south , north east , north , north west.
Aim the HDTVi antenna through the balcony glass door to the south.
Here is how to aim antennas.
http://www.kyes.com/antenna/poingong/pointing.html.
As always , trees and tree leaves do a real fine job of reducing or blocking Digital Tv reception and so do buildings and other obstructions including the apartment building.
It is best to install a antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception.
