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[TowerTalk] Mismatch Loss and Tuners

To: <towertalk@contesting.com>
Subject: [TowerTalk] Mismatch Loss and Tuners
From: jreid@aloha.net (Jim Reid)
Date: Mon, 24 Aug 1998 09:44:57 -1000

-----Original Message-----
From: Pete Smith <n4zr@contesting.com>
To: towertalk@contesting.com <towertalk@contesting.com>
To: <towertalk@contesting.com>
Date: Monday, August 24, 1998 9:20 AM
Subject: Re: [TowerTalk] Mismatch Loss and Tuners



Pete comments and asks a couple of pertinent questions in
response to Steve Best's earlier posting on the topic.

Pete writes:

>This whole discussion is a semantic thicket.  To ease my brain, let's
>consider a specific case. A 1/2 wave dipole, at its resonant frequency, fed
>with 600-ohm open wire line, matched to the transmitter with an appropriate
>LC circuit (including balanced-to-unbalanced transformation) at the
>transmitter end.  Assume that the antenna has a feedpoint impedance of 50
>ohms resistive.
>
>Compare to the same antenna fed througha balun with 50-ohm coax, matched to
>a 50-ohm transmitter.  Will this second antenna "significantly" outperform
>the first?  By how much?  Where do the losses occur?


Be very interesting to see the math and numbers Steve Best comes up
with in response,  Pete!

73,  Jim,  KH7M


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