EXCELLENT!
Thanks Steve for posting.
73
Bob, K4TAX
> For the record, here's a Smith Chart that shows in the coloured areas
> those impedances which need the so-called "HighZ" L-match configuration:
> http://www.karinya.net/g3txq/temp/hiz_loz.png
>
> In the Green area all impedances have a resistive component higher than
> 50 Ohms; in the Cream area the resistive component is less than 50 Ohms,
> but the impedances still require the "HighZ" configuration. By way of
> illustration the chart shows how an impedance of 30.4 Ohms (5+j30) at
> Point 1 requires the highZ configuration for matching to 50 Ohms.
>
> Not really relevant to the OP's problem, but it's as well to be aware
> that the "HighZ" / "LowZ" labelling should not be treated too literally!
>
> Steve G3TXQ
>
>
>
>
> On 08/07/2013 20:42, Richards wrote:
>> First thing to do is test the antenna with your antenna analyzer to
>> see if impedance is hither or lower than 50 ohms at the point where
>> the tuner is. You use information that to select either a LowZ or
>> HighZ fixed capacitor setting.
>
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