I don't have the L and C values for the K2 tuner, but if you want to see what impedances can be transformed from 50 ohms using the KAT100, you can take a look at these images:
http://homepage.mac.com/chen/Technical/Tuner/T3580.jpg http://homepage.mac.com/chen/Technical/Tuner/T14080.jpg http://homepage.mac.com/chen/Technical/Tuner/T28080.jpg The green dots are for transceiver : ( series L : shunt C ) : antenna. The blue dots are for transceiver : ( shunt C : series R ) : antenna. The dots shown are the impedances that the antenna sees if the transceiver's output impedance is 50 ohms. So, antenna impedances that the tuner will tune is just the conjugate of the points that you see on the charts (i.e., just flip the charts upside down). As the file name indicates, they are charts for 3.58 MHz, 14.080 MHz and 28.080 MHz (RTTY frequencies, naturally :-). The application that generates the charts above was originally written to test a Smith Chart library that I wrote for Cocoa. (The library was subsequently used in cocoaNEC and by K1GQ in his cocoaVNA program, an application for the TAPR/Ten-Tec VNA). I'll be glad to make the program available to anyone running Mac OS X 10.4 or newer. You can run the application to generate plots for other frequencies. The Xcode sources are also available in case you have a different set of L and C values (than used in the KAT100) that you want to try out. 73 Chen, W7AY ______________________________________________________________ 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
