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

Gomes ct1hix sapo.pt
Sexta-Feira, 15 de Março de 2013 - 20:04:57 WET


Boas
É muita banda para uma antena só!!!

Gomes, CT1HIX
http://www.ct1hix.webs.com/

Em 15-03-2013 8:56, ct2jnm  sapo.pt escreveu:
>
> 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
>
> Quoting "João Costa > CT1FBF" <ct1fbf  gmail.com 
> <mailto:ct1fbf  gmail.com>>:
>
>> *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
>>
>> <http://www.cqdx.ru/ham/wp-content/uploads/2013/03/Screen-Shot-2013-03-05-at-9.45.46-AM.jpg>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 <http://www.cushcraftamateur.com/>
>>
>> Price: $640 USD
>>
>> Fonte: Sparky\'s World of Amateur Radio 
>> <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>
>>
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