Call Grid Freq. Sign Location Square Emiss'n Ant. Pol. ERP --------------------------------------------------------------------------- 3456.02 K3SIW/9 Schaumburg, IL USA EN52 FH Horz 0.5 3456.04 N4MW Memphis, TN USA A1A 3456.22 W3CCX Philadelphia, PA FM29jw A1A 16 Slot Horz 5