[TowerTalk] Mosley TA-33 problems.........a bit long

[Robert Chudek]

Absolutely true Hank... and the more loss in the coax, the "better" (wider) the bandwidth will look when plotting the VSWR curve.

73 de Bob - KØRC in MN

  ----- Original Message ----- 
  From: Hank Garretson 
  To: Robert Chudek - K0RC ; TowerTalk at contesting.com 
  Sent: Wednesday, February 28, 2007 9:21 AM
  Subject: Re: [TowerTalk] Mosley TA-33 problems.........a bit long


  At 10:02 PM 27 02 2007, Robert Chudek - K0RC wrote:


  >You didn't say where you were measuring your VSWR. The true value 
  >will be accurate at the antenna feedpoint. Or at an electrical half 
  >wavelength of coax cut to the band of interest.


  Not strictly true.  Because of coax line loss, SWR at end of 
  electrical half wavelength of coax will be lower than SWR at the 
  antenna feedpoint (unless SWR at antenna feedpoint is 1:1).  With 
  good coax, the effect will be minimal, but it will be there.



  73,

  Hank, W6SX

  Mammoth Lakes, California