Labels:bulletin board | dialog box | earth | sky | window OCR: Section cont tances RF power dens ines in the main beam of z 3-elemen t triband Yagi for the and 28NHz ama teur radio bands tions include the EPA ground reflection fac to r of 2 .56 Frequency 28MHz An tenna Con trol imi icn Uncon lec powei Dis tance Dis tance con trolled linit uncon tro lled linit 100 500 1000 1500 95 Estima ations