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Re: [TowerTalk] 3el on 80m with another antenna?

To: towertalk@contesting.com
Subject: Re: [TowerTalk] 3el on 80m with another antenna?
From: Dennis OConnor <ad4hk2004@yahoo.com>
Date: Wed, 4 Apr 2007 06:27:08 -0700 (PDT)
List-post: <mailto:towertalk@contesting.com>

Scott W3TX <superberthaguy@adelphia.net> wrote:    Detuning can certainly 
reduce interactions.

But there is no free lunch. Adding relays to the linear loading wires adds 
additional points of mechanical and electrical failure to the system.
   
  denny writes:
  Certainly the the optimum solution is full size arrays on separate 200 foot 
towers... But, that is not within the parameters of the problem that the OP 
asked us to help him solve... Working within his means is what I was aiming at 
while getting him the best performance possible.. 
   
  Your proposed scenario of the M2 self destructing and falling off the tower 
is a far stretch...  The M2 is already dependent upon the mechanical support of 
insulators... A few more will not degrade that assuming they are installed 
competently...
  Certainly relays and insulators add failure points, yet many commercial 
arrays for 80 and 160 contain them... The 80M beams in ON4UN's book contain 
relays and insulators... With a bit of planning the modified M2 beam will be 
reliable...
   
  denny / k8do

 
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