I know it doesn't answer the question you asked, but RG-8/RG-213 has a loss of about 0.85 dB/100 ft at 20m. Your 3:1 SWR will add a little less than 0.4 dB additional loss for a total loss of 1.25 dB. Is the added hassle of running balanced line worth the extra 1.1 dB? Are there other reasons you want to use balanced line?
73 -- Joe KB8AP On Jul 16, 2009, at 5:39 PM, Don Rasmussen wrote: > > Can anyone suggest a compact balanced line that can handle 1000 > watts? I like the size of that Radio Shack 300 ohm TV line, but 100 > watts is likely the maximum. I'd like to build a stealthy KW > antenna. The 20m dipole radiating elements are so low to the ground > that 3:1 SWR is the best I can get. If I tune this out with a tuner, > there will be too many db's of loss over the 100 feet of feed > required. I assume a KW would melt the TV line. Any suggestions? > Don... > ______________________________________________________________ > 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
