Rob,
Yes, I was more interested in repeating the complex impedance values of the
feed point than the absolute VSWR. Some of the fellows have run my antenna
through analysis and came up with different values than I was reading using
the random length of feedline I had dug out of the scrap pile. This was my
attempt to read the values in the comfort of my shack and not have to climb
the tower every time I make an adjustment to the inverted vee legs. I just
hung the new coax a few minutes ago so I will be collecting new data this
evening.
73 de Bob - K0RC
----- Original Message -----
From: "Rob Frohne" <frohro@wwc.edu>
To: "Robert Chudek" <k0rc@pclink.com>
Cc: <towertalk@contesting.com>
Sent: Friday, November 11, 2005 1:36 PM
Subject: Re: [TowerTalk] Playing with my new VIA Analyst (long)
> Hi Bob,
>
> I haven't been back to read the posts that directed you that you need
> 1/2 wavelength of coax to measure the correct VSWR, but it isn't true if
> you have any loss in your coax. The signal is attenuated as it goes
> down the line and attenuated again as it returns, making the forward
> power you measure OK, but the reflected power is attenuated by a trip
> down the line and back assuming you measure the VSWR at the
> transmitter.
>
> The thing that does happen at half wavelength intervals along a lossless
> line is that the impedance repeats itself.
>
> 73,
>
> Rob, KL7NA
_______________________________________________
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