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</o:shapelayout></xml><![endif]--></head><body lang=PT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Caros Amigos,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Com o devido respeito… discutir os 125 mm de cabo “arregaçado” não “recebe a TDT” (eh eh)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Quem se quiser entreter, aqui vão os dados para uma diretiva até 5 elementos diretores e 11,7 db de ganho, <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>devidamente testada e com os créditos a VK5DJ!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Bom trabalho e…TDT a 100%!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:14.0pt;font-family:Forte;color:#1F497D;mso-fareast-language:PT'>73</span><span style='color:#1F497D;mso-fareast-language:PT'> de<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Franklin Gothic Demi","sans-serif";color:black;mso-fareast-language:PT'>José Machado – CT1BAT</span><span style='font-family:"Franklin Gothic Demi","sans-serif";color:black;mso-fareast-language:PT'><o:p></o:p></span></p></div><p class=MsoNormal>------------------<o:p></o:p></p><p class=MsoNormal><span lang=EN-US>VK5DJ's YAGI CALCULATOR<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Yagi design frequency =754,00 MHz<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Wavelength =398 mm<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Parasitic elements contacting a square section metal boom 20,00 mm across.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Folded dipole fully insulated from boom<o:p></o:p></span></p><p class=MsoNormal>Director/reflector diam =6 mm<o:p></o:p></p><p class=MsoNormal>Radiator diam =6 mm<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>REFLECTOR<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>208 mm long at boom position = 30 mm (IT = 94,0 mm)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>RADIATOR<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Single dipole 184 mm tip to tip, spaced 80 mm from reflector at boom posn 110 mm (IT = 82,0 mm)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Folded dipole 187 mm tip to tip, spaced 80 mm from reflector at boom posn 110 mm (IT = 83,5 mm)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>DIRECTORS<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Dir Length Spaced Boom position IT Gain Gain<o:p></o:p></span></p><p class=MsoNormal>(no.) (mm) (mm) (mm) (mm) (dBd) (dBi)<o:p></o:p></p><p class=MsoNormal><span lang=EN-US>1 181 30 139 80,5 3,7 5,8<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>2 179 72 211 79,5 5,9 8,0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>3 177 85 296 78,5 7,4 9,5<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>4 175 99 396 77,5 8,6 10,7<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>5 173 111 507 76,5 9,5 11,7<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>COMMENTS<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The abbreviation "IT" means "Insert To", it is the construction distance from the element tip to the edge of the boom for through boom mounting<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Spacings measured centre to centre from previous element<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Tolerance for element lengths is +/- 1 mm<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Boom position is the mounting point for each element as measured from the rear of the boom and includes the 30 mm overhang.The total boom length is 537 mm including two overhangs of 30 mm<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The beam's estimated 3dB beamwidth is 53 deg<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>---------</span><o:p></o:p></p></div></body></html>