Hello Jeff.
27 Sep 97 06:06, Jeff Edmonson wrote to Roy Witt:
>> JE> Ever made a Quagi? Two quad elements, one as the driven
>> JE> element, one as a reflector, the rest of the directors (9 of
>> JE> 'em) are Yagi elements.
JE>
>> I've stacked a pair of those on UHF. Only had five
>> directors, though.
JE>
JE> The one I saw (my dad built) had a total of maybe 10 elements on it?
JE> 2 quad, and 6 yagi? I can't remember... Damned CRS anyway
If I remember, mine only had 4 directors instead of 5. Still had more than
you dads' though.
>> The plans I used were published in 73 magazine back in 1979. I
>> remember it because I built them on a no-job budget, in my garage.
>> The plans were for a VHF antenna, of which I scaled the dimenions for
>> use on UHF.
JE>
JE> Sounds about the right time-frame. It was included in the ARRL
JE> Handbook in either '78 or '79... carried there for about 4 or 5 years,
JE> and then dropped out, for whatever reason.
Probably got moved to the Antenna book.
>> It was my idea to stack a pair of them and it worked out very well.
>> Over the years the PVC tubing I used for booms deteriated and the guys
>> I used to hold them up straight, frayed, but they were in the elements
>> for 10 years and never wavered.
JE>
JE> What did you use for a phasing stub?
According to Wayne Overbeck, the inventor, you lose to much RF in a phasing
stub. He fed his direct with RG8 or 213. Since I stacked mine, I used RG11
as a stacking harness and fed that with RG8. What surprised me was the SWR
was flat on the first try...
>> I ran across the loop dimensions the other day while looking for
>> something else. If I can find the spacing info and the rest of the
>> plans, I'll post them..
JE>
JE> Hey, that'd be GREAT!
No problem, I just have to run through the file cabinet in my garage. Dirty
dusty place..
... MC&D & Chocolates: You never know what your gonna get.
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* Origin: KB6PI's Antenna Farm * San Diego, CA (1:202/909.10)
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