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  #1  
Old 05-06-2007, 10:03 PM
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Default direct feed element


Looking for pics for a direct feed antenna element. Thanks Guys . # 15.
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Old 05-07-2007, 04:58 AM
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Direct feed simply means connecting the feedline directly to the driven element without any matching system. This requires that the driven element be split in the middle and not grounded.Here is a sloppy example.


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Old 05-07-2007, 05:45 AM
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Find a typical picture of a 'Cushcraft' "A-3" beam's feed point, it's a direct feed (or was).
- 'Doc

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Old 05-07-2007, 09:21 AM
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What's "direct feed"?

Like MC, the only one I'm aware of is a dipole.

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Old 05-07-2007, 09:23 AM
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Well, loops and such are too, but someone told me about a yagi using a "direct feed", no gamma.
I figured BS.

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Old 05-07-2007, 09:28 AM
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Nope, not 'B.S.', just not all that common anymore.
- 'Doc

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Old 05-07-2007, 09:55 AM
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Quote:
Originally Posted by W5LZ
Find a typical picture of a 'Cushcraft' "A-3" beam's feed point, it's a direct feed (or was).
- 'Doc
I should have thought of that. I have an A3.

Looky here at step #4 page #6.

www.cushcraft.com/support/pdf/a3s.pdf

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Old 05-07-2007, 11:38 AM
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I used to have an A4 (same as the A3 but with a separate reflector for 10). It was almost direct feed, but it incorporated a really crappy 1:1 voltage balun at the feedpoint. After a few months, the balun died. I removed it and went straight direct feed. It worked just fine, thankyouverymuch, and I worked several more years with it.
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