[TowerTalk] Missing reflector

[K0SN]

Steve:
I just ran a model on a 5 el. 20 mtr. beam I had in 
my file, on a 40' boom. Here are the results:

          With Reflector                 Without Reflector

Gain          9.84dbi                            9.29dbi
F/B           26.0 db                              9.29 db

The antenna was modeled in free space.

The feedpoint impedance values did not change appreciably.

Hope this helps.

73
Tom K0SN
Porterfield, WI

  ----- Original Message ----- 
  From: K7LXC at aol.com 
  To: towertalk at contesting.com 
  Sent: Saturday, February 28, 2009 7:37 AM
  Subject: [TowerTalk] Missing reflector


  Howdy, TowerTalkians --
   
      Suppose you had a typical 5L 20M beam and the  reflector fell off. What 
  is the real story as far as gain goes? Is it a drastic  drop or what? Any other 
  implications? I obviously don't do antenna modeling  or I would have an 
  answer already. TIA.
   
  Cheers,
  Steve     K7LXC
  TOWER TECH
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