Phil, The T1 tuner has a greater tuning range than the KXAT1. One cannot just simply say that a tuner will match a specific SWR - the characteristics of that particular SWR must be expressed in terms of resistance and reactance to totally answer your question. Look at the maximum L and maximum C proveded by each tuner, and then apply those values to an L-network at the frequency of interest.
All tuners will have a greater matching range at higher frequencies, and the range will be compressed at lower frequencies. So one must translate the SWR into resistance and reactive components (the values plot to a circle on the Smith Chart), and then see what values of C and L in an L network will bring that SWR to a 50 ohm point on the Smith Chart - if those values are within the maximum L and C values provided by the tuner, then that tuner will handle it - if outside those boundaries, a good match is not possible. 73, Don W3FPR Phil Hystad wrote: > So, what is the better way to go. There is the internal KXAT1 auto-tuner for > $99 and then there is the external T1 auto-tuner for $136. > > Are these the same or equivalent tuners? > > What is the SWR range for these? 10:1, 5:1, or 3:1 or whatever? > > Is there an advantage to the KXAT1 other then the fact that it is internal? > > Thanks for any answers and comments. > > 73, phil, K7PEH > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
