<div>O verdadeiro Ovo de Colombo...</div>
<div> </div>
<div>E será que funciona ? Isto é, que a perda em relação ao tamanho normal do dipolo é aceitável ?</div>
<div> </div>
<div>73 de CT1PT</div>
<div>Carlos Pinheiro<br><br></div>
<div class="gmail_quote">2009/8/18 João Gonçalves Costa <span dir="ltr"><<a href="mailto:joao.a.costa@ctt.pt">joao.a.costa@ctt.pt</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">The math and construction is very simple to each side of the dipole to 10m in 28.450mhz!<br><br>This antenna can be designed for the lower hf bands to greatly reduce the overall size versus the standard dipole type for those who have limited space for low band antennas.<br>
<br>Each side of the dipole is 0,66 x[(300/28.450)/4] = meters for one half of the antenna..<br><br>I use a RG58 foam (celular type).<br><br>The same math above in a more simple form:<br>.66 X 75 / 28.450mhz = meters in length per side (We eliminate the extra division step by 4)<br>
<br>Result is 1.73 meters per side, less 35% that its normal size.<br><br>Mais informações em: <a href="http://www.hamuniverse.com/K4mmg2and6meter.html" target="_blank">http://www.hamuniverse.com/K4mmg2and6meter.html</a><br>
<br> _\\|//_<br> ( o o )<br> ------------------ooO-(_)-Ooo------------<br> 73 de:<br> ************************************<br> * CT1FBF / João Gonçalves Costa<br>
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<div></div><br>-- <br>Carlos Pinheiro<br><br>