Wes, It was late last night and I misinterpreted the sign - so yes, that was what my eyes at that time did to me. Your solution is more correct in the light of day.
73, Don W3FPR On 1/3/2011 9:06 PM, Wes Stewart wrote: > Don, > > So you want to add +j1000 to +j1000 to get zero? > > Wes > > --- On Sun, 1/2/11, Don Wilhelm<[email protected]> wrote: > > >> Wes, >> >> I don't know about the -j501, but Kirchoff tells me that a >> series Xl = >> j1000 alone will cancel the +j1000 in the shack feedpoint >> (your example) >> leaving a 50 ohms pure resistive load, no need for the >> shunt element. >> >> Since the absolute value of the Low Pass L-net impedance >> requires that >> Rl be less than Rs, I do not know how a Low Pass section >> would provide a >> match. The matching section must be a High Pass with >> your values. >> >> 73, >> Don W3FPR >> >> >> >> On 1/2/2011 10:22 PM, Wes Stewart wrote: >>> Sort of sounds logical.... but it's wrong. >>> >>> Let the load in the shack be 50 +j1000. >>> >>> A low-pass L-net with a shunt Xc = -j501 and series Xl >> = j1000 will do it. >>> Wes N7WS >>> >>> --- On Sun, 1/2/11, Don Wilhelm<[email protected]> >> wrote: >>>> As you mentioned, the matching range of the KAT3 >> becomes >>>> greater as the >>>> frequency is increased. >>>> That fact is often overlooked by many hams. >> It is all >>>> about the amount >>>> of L and C available in the tuner, but the >> inductive or >>>> capacitive >>>> reactance is really what counts in producing the >>>> match. If the >>>> feedpoint in the shack has 1000 ohms of inductive >>>> reactance, and the >>>> tuner has only 600 ohms capacitive reactance to >> attempt to >>>> cancel that >>>> inductance, then a match will never happen. > > > > ______________________________________________________________ > 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
