positioning home fm antenna (nac)

[Shaun D Mullen]

I am installing a simple directional FM antenna outside my house in 
Newark, DE, in order to get better FM signals from the antenna farm in 
northwest Philadelphia, PA, where most FM stations have their 
transmitters.  I do not have any fancy positioning equipment.  Other 
than using a compass, is there any way I can calculate the precise 
direction in which the antenna should be pointed?

Thanks.  Please answer privately.

Shaun Mullen