Topband: Beverage Length

[Bill Tippett]

W8JI wrote:

>To terminate the antenna, do the same sweep test and adjust the 
>termination for minimum SWR change with frequency. You will 
>never get the reactance out (except at periodic frequencies) 
>because lossy transmission lines (which is what the Beverage is) 
>have "internal" reactance, but adjusting for minimal SWR change 
>as frequency is swept will be darned close to optimum termination.

        One of the slickest ways to do this is with AEA's Complex
Impedance Analyzer...the one which shows a LCD display of SWR vs. freq.
I normally set it up so that it sweeps 1.5 to 3.5 Mhz and have trained
my XYL to tell me when it looks most flat while I adjust a noninductive
pot at the termination end.  You can also do it with other analyzers but
the AEA's graphic display makes it very easy.

                                                73,  Bill  W4ZV


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