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<p>Concordo com o colega Gomes!<br>
Mais uma carga-fictícia denominada de antena!<br>
Nem comprimento para os 40 metros deve ter quanto mais para os 80 metros por isso vai de bobines pelo meio... Prefiro um dipolo e um tuner se necessário!<br>
Nunca compreendendi muito bem esta necessidade dos fabricantes fazerem antenas verticais, ainda por cima sem plano de terra como é o caso desta R-9... Bom, alguém há-de as comprar senão não as faziam!<br>
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Cumprimentos 73<br>
CT7AHV - Pedro Madeira<br>
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<p>Quoting Gomes <<a href="mailto:ct1hix@sapo.pt">ct1hix@sapo.pt</a>>:</p>
<blockquote style="border-left: blue 2px solid; padding-left: 8px; margin-left: 8px" type="cite">
<div class="moz-cite-prefix">Boas<br>
É muita banda para uma antena só!!!<br>
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Gomes, CT1HIX
<a class="moz-txt-link-freetext" href="http://www.ct1hix.webs.com/">http://www.ct1hix.webs.com/</a>
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Em 15-03-2013 8:56, <a class="moz-txt-link-abbreviated" href="mailto:ct2jnm@sapo.pt">ct2jnm@sapo.pt</a> escreveu:</div>
<blockquote cite="mid:20130315085617.Horde.07fFKJUe0BVRQuIxOM-G89A@mail.sapo.pt" type="cite">
<p>Gostava de ter uma!!<br>
Mas aqui na beira serra onde os ventos atingem com facilidade mais de 100K/h não a devia ter em pé por muito tempo<br>
CT2JNM - Nuno Fonseca<br>
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<p>Quoting "João Costa > CT1FBF" <<a href="mailto:ct1fbf@gmail.com" moz-do-not-send="true">ct1fbf@gmail.com</a>>:</p>
<blockquote style="border-left: blue 2px solid; padding-left: 8px; margin-left: 8px" type="cite">
<div> <strong>Cushcraft R9 covers 6,10,12,15,17,20,30,40,80 Meters.</strong><br>
<ul>
<li>NO GROUND SYSTEM OR RADIALS NEEDED</li>
<li>RUGGED CONSTRUCTION INSTANT BAND CHANGING</li>
<li>SLIM LOW PROFILE SILHOUETTE</li>
</ul>
<p><a href="http://www.cqdx.ru/ham/wp-content/uploads/2013/03/Screen-Shot-2013-03-05-at-9.45.46-AM.jpg" moz-do-not-send="true" rel="lightbox[35157]"><img alt="" class="size-full wp-image-35158 alignleft" height="821" moz-do-not-send="true" src="http://www.cqdx.ru/ham/wp-content/uploads/2013/03/Screen-Shot-2013-03-05-at-9.45.46-AM.jpg" title="Screen Shot 2013-03-05 at 9.45.46 AM" width="331"></a>This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. As a result, the antenna more accurately addresses the needs of the contemporary ham shack.</p>
<p>Multiband vertical antennas have always been complicated designs with components as likely to be damaged by high levels of mismatched transmit power as the rigs they are attached to. Before the use of tuners became widespread, the antenna was protected by the same safety mechanisms that protected the rig. Now, the automatic power reduction circuits of the past have actually become a second layer of protective circuitry. Although the auto-tuner provides the ham with a more versatile device as well as protecting the rig?s components, the antenna is more vulnerable than ever. With the press of a button, very high loads can be imposed on the antenna. The result to the antenna can be catastrophic failure in some instances.</p>
<p><a href="http://www.cushcraftamateur.com/" moz-do-not-send="true" target="_blank"><font color="#495357">Link</font></a></p>
<p>Price: $640 USD</p>
<p>Fonte: <a class="l vst" href="http://www.google.pt/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=1&cad=rja&ved=0CC8QFjAA&url=http%3A%2F%2Fwww.cqdx.ru%2Fham%2F&ei=GAJCUbXrH4ar7AbLg4HADA&usg=AFQjCNFaQUw-xZ6MMoVz3mbb948yRpcT6g&sig2=Zd7P-NKJB2szoymuFsPsrg" moz-do-not-send="true"><font color="#1122CC">Sparky\'s World of Amateur Radio</font></a></p>
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