First you need to pick a satellite to receive, I'd try AMC4 at 101-degrees. Your 2700A (I have one) should have preinstalled transponders and symbol rates for AMC4. The strongest channel (transponder) to find is FOX in Beaumont, TX (KUIL). The freq. is 11708-vertical with a symbol rate of 2170...again this freq. and symbol rate should already show up on your on-screen guide as a preinstalled channel. Someone smarter than me has already posted elevation angles for AMC4 for your physical location. Once you know the elevation angle, set that angle then just swing your dish east to west until you get a signal. I'm in Wisconsin, so my elevation angle is 37-degrees, but I assume being in Philly your elevation angle will be quite a bit higher than 37-degrees.