When I started in the hobby, I worked 150 countries before I found out a G5RV didn't work. Took it down and haven't used it since.
Sent from my iPhone > On Aug 5, 2016, at 11:21 AM, William Lagerberg <pe1...@zendamateur.nl> wrote: > > And you now dear list users, i have a G5RV and i really love it it works > allways, and give’s me good results :-)) > > Just have to say that. > > Regards William PE1BSB > > > >> On 05 Aug 2016, at 16:58, Phil Wheeler <w...@socal.rr.com> wrote: >> >> Alas, the poor G5RV. Now that its been flogged to death, maybe we need a >> new target -- say the Windom? >> >> Phil W7OX >> >>> On 8/4/16 10:22 PM, Wes Stewart wrote: >>> The tuner loss also depends on how it is adjusted. For example the very >>> popular high-pass Tee with three adjustable elements has an infinite number >>> of possible combinations that will effect a match on the same load Z. One >>> of them is the lowest loss solution, all of the others aren't. >>> >>> As I said earlier, in a letter to Dean Straw dated February 2, 1994 I >>> offered an example where the SPC tuner, then current in the handbooks, >>> could be used to match an impedance of 4.34 +j46 to 50 ohm. (I forget where >>> this came from but it was a real possibility) I assumed Qc = 1000 and Ql = >>> 300 (generous). I used Touchstone to calculate the minimum loss and maximum >>> loss solutions The best case was 1.6 dB and the worst case was 7.8 dB. >>> >>> With lower Q components, Qc = 500, Ql =200, the losses were 2.4 to 9.5 dB! >>> >>> Wes N7WS >>> >>> >>> On 8/4/2016 2:00 PM, Alan Bloom wrote: >>>>> It's a pity that too many newcomers, as well as many oldsters, are >>>>> enamored by this piece of wire. >>>> >>>> The G4RV is definitely a compromise antenna. However its advantage is >>>> that is has low-enough SWR to be easily matched by most tuners on a number >>>> of bands. >>>> >>>>> ... the horrific losses that could be incurred even >>>>> with high quality tuners, >>>> >>>> It's true that tuner losses are the manufacturers' dirty little secret. >>>> Loss is rarely specified, partly because it can be pretty bad, and partly >>>> because it is hard to measure, but also because it is not constant - it >>>> depends on the particular impedance being matched. >>>> >>>> One exception is the old Drake tuners. Their Pi-L topology makes the loss >>>> almost independent of the load impedance. If you can get it to match, you >>>> know that almost all the power is going into the feed line. For example, >>>> the MN-2700 that I designed when I was at Drake was specified at 0.5 dB >>>> maximum insertion loss and I did a lot of testing and tweaking to achieve >>>> that on all bands. >>>> >>>> Alan N1AL >> >> ______________________________________________________________ >> 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 pe1...@zendamateur.nl > > > ______________________________________________________________ > 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 n...@hotmail.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
