Yes, and if you dumped the T match network and replaced it with an L network
tuner you would find that the matching is much easier and always accurate.
The L network will only match at one combination of L and C values. The T
networks are known to appear to match at several combinations of L and C
values, however only one combination is most efficient. It requires a
network analyzer to figure out which one is correct.
> I'm an apartment dweller, and QRP contester. I've always had to make do
> with compromise antennas, and T-matches. Even with a roller inductor, I
> still occasionally can't get down to 1.5:1 or less for an SWR. This is
> where the radio's autotuner comes into play. First, I tune for as low of
> SWR as I can get with the T-match. THEN, I use the radio's autotuner to
> the radio seeing 1.5:1 or less. BUT, you ahve to use the autotuner after
> you're done with the T-match, otherwise, it will most definitely "fight"
> with the T-match (you'll wind up tuning with one, and then the other, over
> and over again). It'll be like a dog chasing its tail. So the T-match
> the basic tuning for the band you're on, and then the autotuner does the
> fine tuning, and if you do search & pounce in contests, like I do, the
> autotuner will fine tune your SWR for any significant frequency chenges
> make on the band. But, you have to leave the T-match alone, once you set
> on the band you're operating.
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