Copper Talk » Open Forum » Archived Messages » 2004 » 02/01/2004 to 02/29/2004 » Vector 4000 by Sirio 7/8 Wave Omni Antenna (how good is it) « Previous Next »

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Clark514
Posted on Sunday, February 08, 2004 - 11:18 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I'm thinking about getting this antenna to replace my A99...should I or shouldn't I.
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Bruce
Posted on Monday, February 09, 2004 - 7:15 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

7/8 wave? wow i would like to see how that looks sounds like a gimic to me.
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Bruce
Posted on Monday, February 09, 2004 - 7:30 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I looked it up it apairs to be a end fed 1/2 wave 3/4 wave total including 1/4 wave matching stub.
Buy a i-max from copper you cant go wrong with it and know you got a good antenna or chance this is going to be any better .... GAIN should run right at 3DBD.
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Oldpirate
Posted on Monday, February 09, 2004 - 3:33 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hi Bruce, another antenna Clark could try is the Shakespear NBS2010 seems to be the equivalent of the imax as far as performance goes but doesn't bend as much in the breeze. On a 100 watt Kenwood I can talk to a station 100 miles to the south and this is ground wave, terrain is flat so this probably helps so my choice would be either Imax or Shakespear. Some people say you can't work dx on a verticle but don't you believe it, some times here (New Zealand)the Shakespear will get through when my 3 element yagi won't.
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Bruce
Posted on Monday, February 09, 2004 - 7:41 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

As Murry knows there are a number of choices but keep in mind gain comes from changing lobes of enegry comming off the antenna and a 1/2 wave and a 5/8 wave only can produce so much change about 3 db worth. SO all of them will be close IF they are built right.
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Clark514
Posted on Tuesday, February 10, 2004 - 10:35 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Thanks guys for all your input....i have a A99 and A 5/8 wave....maybe I'll look into getting a 3 or 4 element Beam instead....Thanks again....Clark cef122