ARLA/CLUSTER: Nova antena Cushcraft R9 para 6, 10, 12, 15, 17, 20, 30, 40, 80 Metros

[ct2jnm sapo.pt]

Gostava de ter uma!!
    Mas aqui na beira serra onde os ventos atingem com facilidade mais de
100K/h não a devia ter em pé por muito tempo
    CT2JNM - Nuno Fonseca
    Â 

Quoting "João Costa > CT1FBF" <ct1fbf  gmail.com>:
> Â CUSHCRAFT R9 COVERS 6,10,12,15,17,20,30,40,80 METERS.
>
>
>
>   * NO GROUND SYSTEM OR RADIALS NEEDED
>   * RUGGED CONSTRUCTION INSTANT BAND CHANGING
>   * SLIM LOW PROFILE SILHOUETTE
>
>
> [1]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.
>
> 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.
>
> Link[2]
>
> Price: $640 USD
>
> Fonte: Sparky\'s World of Amateur Radio[3]
>
>




Ligações:
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[1] <a  
href="http://www.cqdx.ru/ham/wp-content/uploads/2013/03/Screen-Shot-2013-03-05-at-9.45.46-AM.jpg">  
http://www.cqdx.ru/ham/wp-content/uploads/2013/03/Screen-Shot-2013-03-05-at-9.45.46-AM.jpg</a>
[2] <a href="http://www.cushcraftamateur.com/">  
http://www.cushcraftamateur.com/</a>
[3] <a  
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">  
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</a>
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