I've heard quite a few people use balun, when they meant impedence transformer or unun.
I heard somewhere (and the tapes have been erased) that the 43' length came about because it was the most economical length for a manufacturer to cut stock with the least waste to meet shipping limitations. 73, Mike NF4L On 3/8/2011 5:29 PM, David Herring wrote: > Here's a follow-on question to the reflector... > > Vernon's set-up brings a question to mind. He says he's using a 4:1 balun on > his vertical. At first brush that seems counterintuitive, doesn't it? Isn't > a vertical unbalanced? Certainly the coax is unbalanced. When you're mating > an unbalanced feedline with an unbalanced antenna, wouldn't one be better off > using an unun rather than a 4:1 balun? > > In further support of my line of questioning, I've read numerous, albeit > anecdotal, reports of people being displeased with the performance of their > vertical, particularly the untuned ones like Zero-Five for example. But when > they add an unun they are then amazed at how the antenna allegedly "sprung to > life." > > 73, > Dave AH6TD > > On Mar 8, 2011, at 6:20 AM, Vernon Mauery wrote: > >> Yes. I can see the S-meter go from 3-4 down with static down to >> nothing with quieter static. My best guess is that I am not trying >> the right times at the right places. >> >> Thanks to everyone for the help. >> >> --Vernon N7OH >> >> On Tue, Mar 8, 2011 at 8:12 AM, Ross Primrose N4RP<n...@aiko.com> wrote: >>> Does the received noise decrease when you disconnect the antenna? >>> >>> 73, Ross N4RP >>> >>> On 3/8/2011 1:06 AM, Vernon Mauery wrote: >>>> At the risk of exposing what a n00b I am when it comes to HF, I really >>>> need some help. I recently (last month) purchased a K3. First HF >>>> radio I have owned. I got my license 2 years ago and have spent most >>>> of the time since playing with VHF. I have been trying to teach >>>> myself CW and decided that it was time to step into the HF waters. I >>>> studied, ogled, and dreamed of my ideal HF transceiver. I finally >>>> found the K3 and having looked (at least a cursory glance) at all the >>>> others, I was sold. I saved my pennies and purchased. I also got >>>> myself a 43' untuned vertical antenna, balun, and radial wires. >>>> >>>> My setup: K3/100 has 100 feet of low loss 400 coax out to the 43 foot >>>> vertical on the hill in my back yard. It has 8 25 foot radials and a >>>> 4:1 balun. The K3 has the KATU3, KPA3, KTCXO3-1, KFL3A-400, and >>>> default 2.8KHz filters. I assembled it and did followed the >>>> calibration instructions as well as I could. I think I got >>>> everything, but obviously I missed something. Or maybe I just need an >>>> elmer to tell me what to do. >>>> >>>> I cannot seem to find any signals that make the S meter go above a 3 >>>> or 4. I have the RF gain turned up a fair ways (mostly to the top), >>>> and I can hear static. As I tune up some of the bands on SSB, I can >>>> hear a tone that changes higher in pitch as I tune up in frequency. I >>>> have tried listening for CW, but I am hearing nothing as I scan >>>> through the bands. I had a 10m horizontal dipole taped to my wall for >>>> a while until I found time to run the coax out to the back yard. I >>>> had hoped that since it was resonant on the 10m band, maybe it would >>>> be able to pick up something, but it was no better (or worse) than my >>>> vertical. >>>> >>>> As far as I can tell, the radio seems to transmit. I can see the >>>> power meter moving and the SWR meter moving. The ATU seems to be able >>>> to find acceptable settings on most of the bands with the vertical. >>>> But I can't hear them. You can't work them if you can't hear them, >>>> right? >>>> >>>> This is a desperate plea for help. Is it the radio or me? Please >>>> have pity on the n00b and walk me through my first HF contact. >>>> >>>> --Vernon N7OH >>>> ______________________________________________________________ >>>> 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 >>> >>> -- >>> FCC Section 97.313(a) “At all times, an amateur station must use the >>> minimum transmitter power necessary to carry out the desired >>> communications.” >>> >>> ______________________________________________________________ >>> 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 >>> >> ______________________________________________________________ >> 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 > ______________________________________________________________ > 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 > ______________________________________________________________ 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
