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</o:shapelayout></xml><![endif]--></head><body lang=PT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Olá António,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Salvo melhor, só conheço um significado para aquele simbolo que é PTE=Escudo.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>A antena, sendo ou não de marca, tens as caraterísticas de uma LFA (Loop Fed Array) muito divulgada, há alguns anos, pelo Justin G0KSC, o homem da InnovAntenas que tem estudado e desenvolvido o conceito. Há cópias das antenas do Justin, com outras marcas, que não são a “mesma coisa”.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Esta antena LFA carateriza-se, fundamentalmente, por 3 vantagens em relação às demais yagi:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Maior largura de banda;<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Maior concentração/direccionalidade por rejeição dos lóbulos laterais;<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Anulação das correntes inversas e<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-family:"Calibri","sans-serif";color:#1F497D'><span style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Maior rejeição frente/costas.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>O António não referiu as medidas mas calculo que o trombone andará pelos 95cm, será?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Se disser as medidas é fácil calcular a frequência de ressonância.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>É uma das melhores (senão a melhor!) antenas, para V/UHF<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'>Espero ter ajudado.<o:p></o:p></span></p><p class=MsoNormal><i><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>73 from<o:p></o:p></span></i></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img width=69 height=86 id="Imagem_x0020_1" src="cid:image001.jpg@01D2C67B.62ED94A0" alt="Foto assinat"></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cluster-bounces@radio-amador.net [mailto:cluster-bounces@radio-amador.net] <b>Em nome de </b>António Santos<br><b>Enviada:</b> 6 de maio de 2017 09:39<br><b>Para:</b> 'Resumo Noticioso ARLA/CLUSTER'<br><b>Assunto:</b> ARLA/CLUSTER: Solicito ajuda na identificação de uma antena de VHF Ligadas em fase.<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'>Obrigado colegas,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'>Fiz um esboço da antena, os elementos e o dipolo estão todos por cima do boom, o último refletor está a 90º de todos os outros, juntei também o símbolo que está em todas as peças plásticas e metálicas.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'>73s<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'>António Santos<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'> CT4SU <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#2828F5'><o:p> </o:p></span></p></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br /> <table style="border-top: 1px solid #D3D4DE;">
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