[TowerTalk] Vertical comparison question

[John G.]

Hi Dan

How lossy are traps really?  I have seen so many diffrent figures on how bad they are or aren't

73 John AF5CC

  ----- Original Message ----- 
  From: Dan Hearn 
  To: John G. 
  Cc: Scott MacKenzie ; towertalk reflector 
  Sent: Saturday, April 06, 2013 3:12 AM
  Subject: Re: [TowerTalk] Vertical comparison question


  Triband Yagis also suffer due to losses in their traps as do trapped verticals. A 1/4 wave vertical with a good radial system is hard to beat as a simple DX antenna. There are trapless multiband Yagis from several companies which are quite efficient also. 


  Dan, N5AR




  On Fri, Apr 5, 2013 at 7:15 PM, John G. <af5cc at fidmail.com> wrote:

    That brings up another issue I have wondered about.  I know that monoband yagis outperform tribanders because they have the proper element spacing, where a tribander is a compromise in terms of element spacing, without optimal spacing for any of the bands it covers.

    Does the same hold true for verticals?  Will a single band vertical outperform a 20-10 trapped vertical?  There is no element spacing to take into account with a vertical.

    73 John AF5CC
    ----- Original Message ----- From: "Scott MacKenzie" <kb0fhp at verizon.net>
    To: "'John G.'" <af5cc at fidmail.com>
    Sent: Saturday, April 06, 2013 2:07 AM
    Subject: RE: [TowerTalk] Vertical comparison question



      I have a Gap Titan.  It is a compromise multiband antenna.  It primary
      benefit is low maintenance.  It makes contacts for my very casual operating
      these days.  With work, I can make a contact in a pileup.  If I were to
      compare it to a single band vertical with a proper ground system, I think I
      would lose.

      The take off angle is low but it is a low maintenance compromise multiband
      antenna.  I don't think it is the worst performer, nor the best.


      -----Original Message-----
      From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of John
      G.
      Sent: Friday, April 05, 2013 9:57 PM
      To: towertalk at contesting.com; DX-IS at yahoogroups.com
      Subject: [TowerTalk] Vertical comparison question

      How do the "radialless" verticals, like the R5, R7000, MA5V, Gap ones,
      compare in performance to the standard 1/4 wave verticals that are roof
      mounted with radials?  Does one tend to outperform the other?  I am looking
      how each performs for DXing and longer haul communications.

      73 John AF5CC
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  -- 
  Dan Hearn
  N5AR