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Europa aerial

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mp.gamble(at)tiscali.co.u
Guest

Posted: Mon Aug 18, 2008 11:55 am Post subject: Europa aerial

Does anybody have a measurement of the final length  of the tape aerial mounted in the fin of the Europa after adjustment with the  SWR gadget?

 Is there any reason why I should not paint over the  aerial with rest of the fin closeout ?

 Thanks

 Mike Gamble

 Finally getting ready for the  paint-shop.



   [quote][b]

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davidjoyce(at)doctors.org
Guest

Posted: Mon Aug 18, 2008 1:51 pm Post subject: Europa aerial

Mike, Is there any reason to paint the tail close out, or the other close 

outs for that matter? David Joyce, G-XSDJ (with naked close outs!)

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mp.gamble(at)tiscali.co.u
Guest

Posted: Tue Aug 19, 2008 2:59 am Post subject: Europa aerial

With the moveable bits off the close outs will catch overspray anyway so I

just thought I would finish the job  I believe that glass over the aerial

will affect its performance so I wondered if the paint might also.

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frans(at)paardnatuurlijk.
Guest

Posted: Tue Aug 19, 2008 3:17 pm Post subject: Europa aerial

Glass neither paint will hinder the performance. In the worst case you have to retune the antenna, but this is not likely. It is best to leave the aerial tuned to the lower part of the band until the airplane is finished, and then trim the lenght to the middle of the band. But then again it doesn't really matter, since the coax lenght is fairly small, and losses are therefor minimal anyway. As long as the SWR is within the radio's manufacturer limit you don't have to bother over its performance.

Visit -  www.EuropaOwners.org

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rampil

Joined: 04 May 2007
Posts: 870

Posted: Wed Aug 20, 2008 6:17 am Post subject: Re: Europa aerial

To be complete, ordinary paint will have next to no effect on antenna

performance with the major exception being UV barrier, metal containing

primer. These coating will significantly shield the antenna and reduce

effective radiation.

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_________________
Ira N224XS

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