[TowerTalk] 80m 4Square Comtek box

Frank Mayer domino at worldlynx.net
Thu Nov 18 09:29:17 EST 2004


I use a variable phasing network for my 2 4BTV verticals that I use on 40 and 20 meters.  The phasing unit consists of a roller inductor in series with one antenna and a 500pf variable in series with the other antenna.  The outputs of those 2 components are joined and feed an antenna tuner connected to the rig.  I have a DPDT toggle switch so I can switch the 2 components to the opposite antenna to change directions.  The antennas are 17' apart and have a cardioid pattern on both bands with at least 20 to 30 db front to back.  I just wish there was some way I could measure the forward gain.  It is within 1 s- unit of my 2 element yagi on 40 to VK and ZL.
WY3D
  ----- Original Message ----- 
  From: Jan Erik Holm 
  Cc: 'towertalk' 
  Sent: Thursday, November 18, 2004 7:24 AM
  Subject: Re: [TowerTalk] 80m 4Square Comtek box


  People who likes to spend money buys Comtek boxes.
  People who doesn´t makes a W7EL phaseing unit by
  themself, not only will they save money but at the
  same time they will get a better working 4 square
  vertical array.
  Also they might learn something technical in the
  process.

  73 Jim SM2EKM
  -------------------------------------------------


  Yo3ctk wrote:

  > Tom,
  > 
  > I read from your comments that the Comtek box doesn't work and cannot 
  > work. Is my reading correct?
  > 
  > sheesh, I just bought one, based on favorable comments read on the net....
  > 
  > 73 de Mike, YO3CTK
  > 


  _______________________________________________

  See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

  _______________________________________________
  TowerTalk mailing list
  TowerTalk at contesting.com
  http://lists.contesting.com/mailman/listinfo/towertalk


More information about the TowerTalk mailing list