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SV: modeling qha



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Hi Wally, i hereby send u a model i made of a 2 meter QHA (and i've also build it,
and it works great :))
I dunno if that helps u but.......here u are.
U are welcome to mail me ur models, and I will gladly look into them.

73 de OZ4ui / Lars


-----Oprindelig meddelelse-----
Fra:	Wallace Strom [SMTP:kg4yuw@arrl.net]
Sendt:	19. april 2004 04:22
Til:	amsat-bb@AMSAT.Org
Emne:	[amsat-bb] modeling qha

Hello,

This might be off topic but...

I have been trying to model a Quadrifilar helix antenna with MMANA and
EZNEC 3.0 demo without much luck.  The pattern breaks down when I model
the antenna at 6 meters above ground.  I have modeled W3KH's antenna and
Steve Blackmore's "Tall narrow QHA" - both have nulls at the lower 30
degress(0-30 , 180-150).  Any help would be appreciated.


73,
Wally
KG4YUW



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