I live in a south-facing condo near Dufferein+Steeles. No way that a channel 7 yagi for WNGS is possible. The best I can hope for is to tape some insulated wire to a pipe-shaped metal rail on my balcony, to form a simple dipole. Would that work? Can anyone give a ballpark estimate of whether I should lengthen or shorten the dipole from the 33 inches nominal half-wave size?