JRTech "Is this a general purpose Hi-Band Yagi (for 7 to 13),"

This antenna was built specifcally for an attic use on OTA channels 8+10, as those are the only ones I can verify operation with. Changing the folded dipole to 28.5 inches works good on 12 (the only philly VHF-hi station) The table lists element lengths for the air channels (I incorrectly termed these virtual) with spacing to the previous element.