Extra Class licensees vs. Extra Class Operators ... huge delta there ... -- 73 de Mike Flowers, K6MKF, NCDXC - "It's about DX!"
> On Oct 10, 2019, at 4:12 PM, Bob McGraw K4TAX <rmcg...@blomand.net> wrote: > > I used my Johnson Matchbox at our Field Day event about 3 years ago. I > went through each band and several frequencies on each band and compiled a > written chart identifying the settings for each band/frequency. After 2 > hours of trying to work stations on 20M, the radio failed and they came to > wake me from my late night nap. The result is the Matchbox was adjusted for > 80M in the CW portion and the operators were complaining of high SWR and no > power output on 20M. It took 2 hrs for them to observe this? I was > amazed at the number of "Extra Class" operators at the site that thought the > tuner was automatic and would change with band / frequency changes on the > radio. The radio by the way WAS NOT an Elecraft product. > > 73 > > Bob, K4TAX > > > >> On 10/10/2019 7:35 PM, Don Wilhelm wrote: >> Joe, >> >> I agree completely, bring your Johnson Matchbox to the next Field Day! Or >> even your old plug-in coil open frame link coupled balanced tuner. >> >> Who has a link coupled tuner (like the Johnson Matchbox) these days? Those >> are big boat anchor box these days (and hard to find). I have one that sees >> little use, but I am not willing to part with it. It does a good job when >> needed. >> >> Most autotuners are of the L-network design and the manual tuners are >> typically T-network - the L-network can be a high pass or a low pass filter, >> but the more common T-network is always a high pass filter. If one has an >> old Collins tuner, it may be a Pi-network which is a low pass filter. >> >> As you pointed out, the link coupled tuner is a bandpass filter, but fixed >> tune bandpass filters will do just as well for multi-station operation. >> >> 73, >> Don W3FPR >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mike.flow...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
