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Mark Keith wrote:
What about your balun/choke connection? W2DU choke, virtually lossless. The tuning cap is also virtually lossless, much more so than a tuner with a coil. The only real loss I have is the loss of the feedline "213", and on 80m, it's about as good as ladder line. It's about as good as open-wire line with a 10:1 SWR. The matched line losses in 100 ft. of RG-213 are higher than the unmatched line losses in 100 ft. of open-wire line with a 10:1 SWR on 80m. According to Wirebook II, the matched line loss for RG-213 is ten times higher on 80m than the matched line loss for open-wire line. If it were better, I could see it. But it's not. It's inferior. If it were not, I would be using one here at the house. You are so biased, you wouldn't use one if your life depended on it. :-) Why would anyone want to do more work, for something a step in the wrong direction? It's a step in the right direction, Mark, toward an all-HF-band antenna. I modified my G5RV yesterday to work well on all eight HF bands plus 6m. Field strength measurements indicated it is virtually identical to my 130 foot dipole on 80m. The "average" storebought G5RV is pitiful on 80m compared to the coax fed dipole. Mine is virtually equal to a resonant dipole. Your "average" storebought G5RV must be poorly designed - maybe lacking a balun - maybe using RG-58 coax - maybe using the wrong length of the series section transformer. But everyone ignore what I say. I'm really fibbing, and just messing with ole Cecils head... I asked for some scientific proof of what you say. All you responded with is prejudice and hand-waving. Please take time to calculate the matched line losses in RG-213 Vs the unmatched line losses for open-wire line and you will change your mind (if you are rational). -- 73, Cecil, W5DXP -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |