Save one; the screwdriver antenna on my truck is tuned (coil adjusted) by the TurboTuner attached to my radio until a match is found.
And an argument could be made that a SteppIR controller performs a similar function. The rest are matching circuits to compensate for the disparity of input to output. 😜 73, Rick NK7I Email spiel Czech corruptions happen > On Jul 17, 2020, at 7:00 PM, Fred Jensen <[email protected]> wrote: > > No antenna has, at any time, anywhere in any of our lifetimes, been "tuned" > by an "antenna tuner." So called antenna tuners are 2-port impedance > matching networks ... all of them ... and their job is to match the impedance > on one port to another impedance on the second port, period. Nothing gets > "tuned." They come in a variety of flavors ... a pair of push-pull 807's > with a resonant tank and a link feed to the antenna on open wire line is one. > Everything that happens on the feed line [regardless of it's construction] > is the sole result of the complex impedance at the antenna feed point and the > characteristic impedance of the feedline. No magic. > > 73, > Fred ["Skip"] K6DGW > "Captain Obvious" > Sparks NV DM09dn > Washoe County > >> On 7/17/2020 5:14 PM, Ken Roberson via Elecraft wrote: >> Kurt, >> We are not tuning the antenna , we are matching the antenna to the coax at >> the base of the antenna. >> 73 Ken K5DNL >> >> On Friday, July 17, 2020, 7:10:32 PM CDT, Kurt Pawlikowski >> <[email protected]> wrote: >> Ken: In some respects, a "matching device" at the base of the antenna is >> a tuner! {'-) It accomplishes the same function... {'-) k WB9FMC >> On 7/17/2020 6:34 PM, Ken Roberson via Elecraft wrote: >> Antenna tuners >> >> I never use an antenna tuner , on the MF and LF bands realmen use a >> scopematch at the >> >> Output of the Power Amp and a matching device at the base ofthe vertical >> antenna – HI Hi. >> >> 73 Ken K5DNL >> > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
