Let’s explore the opposite of coax, which is transmission line made of two parallel conductors. I use the ARRL Antenna Book and a little of Wikipedia as sources. This is in response to a question from David Spivey, KR4WX.
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I use drawings from OpenClipArt.org, including the "walking man"
Technician training videos, see http://www.ke0og.net/training/
General training videos, see http://www.ke0og.net/general/
Amateur Extra training videos, see http://www.ke0og.net/extra/
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Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)
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The ham radio part of my website (direct link): http://www.ke0og.net
My publishing website: http://www.mtsneffelspress.com, where you can find my fantasy and science fiction books, as well as some local history books I publish for the Ridgway Railroad Museum and the Ouray County Historical Society
My Amazon author page, which lists my print and Kindle books: http://www.amazon.com/-/e/B00471I0Q4.
I’m often asked what equipment I use to create the videos. The devices include the Panasonic DMC-G7 camera, Panasonic HDC-TM90 video camera, GoPro Hero2 HD camera, Tascam DR-05 audio recorder, Audio-Technica ATR-3350 lapel microphone, Sony Cyber-shot DSC-W560 digital camera, the Kodak Zi-8 video camera, my iPhone 5S. Software used: CyberLink PowerDirector 17 on an HP Gaming Pavilion, also using Smoothdraw 18.104.22.168, FastStone Image Viewer 5.3, FastStone Capture 8.0, Audacity 2.1.1, LibreOffice 22.214.171.124, and Ink2Go 1.7.2. You can see how my studio is set up by viewing https://youtu.be/wFSQ8vtNA5A.