-=> On 09-27-97  06:30, Jeff Edmonson said to Ivy Iverson,<=-
-=>"About High Gain Antennas for 2M...,"<=-
 
Hi, Jeff;
 
 JE> Copper pipe J-Poles would fair better... maybe even some small (1/4")
 JE> tubing,  and do exactly that - if you were to feed them horizontally.
 JE> Probably better  suited for a vertical configuration.
 
 II> Agreed, though using solid pipes,
 JE> PArdon me, but "Solid Pipe" seems to be a contradiction in terms ;-) 
 JE> (Pipes  are hallow)
 
(Sorry for the oxymoron...)
 
 II> (I suggest something heavier than 1/4" however, like 1/2" to 1"),
 JE> Pipe?  Copper Pipe is intirely too heavy, and extremely large for
 JE> V/UHF work! 
 II> it should be possible to make a horizontal beam using J-poles.
 II> I'm not sure offhand if they would need to be fed in
 II> phase or 180 degrees out of phase. I'll have to think about that. :-/
 
 JE> I remember an antenna that was commerically made for 2m, by Cushcraft.
 JE> Had 4  driven elements, and they were cross-fed, so the last DE to be
 JE> fed, was 180ø  out of phase.
 
 JE> You see my message to Stan on Quagi's?  Why not 4 J-poles (two driven,
 JE> opposite of each other) two reflectors (same configuration) and yagi
 JE> directors?  Put the whole thing on a 20' wooden boom...
 
 II> Nope, missed that one.  Sounds interesting.
 
 JE> It's been pointed out, it might be a bit cumbersome...  but a pair of
 JE> 5/8  elements as DEs and yagi directors does sound reminiscent of a
 JE> Quagi. 
 
Hmmm... Not quite what I had in mind, but it might be quite workable.
I am more interested in something new that isn't in all the books, which
hopefully will have advantages, (like gain and/or directivity), over the
standard designs.  IOW, just experimenting with something different to
see how it compares.  If it works, great!  If it doesn't, try somethng
else.   :-}
 
73 DE KB9QPM
   Ivy
 
 
 
... Can't sleep?  Problem.  Are you a Ham?  NO PROBLEM!!!!  CQ-CQ-CQ... ;-{}
 
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