I'm surprised that the broadcast industry is just discoving this topic. My library of decades-old antenna handbooks covers this quite well: https://www.radioworld.com/show-news/nab-show/why-well-dres
That's a very interesting antenna. I wish it had a spec of freq in the drawing so it could be scaled to 160 or 80 meters. Joe WB9SBD https://www.radioworld.com/show-news/nab-show/why-well-dressed-tow
I have been using a similar antenna for 160m for several years. I described it on my QRZ.com website. Karel OK1CF That's a very interesting antenna. I wish it had a spec of freq in the drawing so it
What makes you think it is just being discovered? Rob K5UJ _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Author: Robert Parkes via Topband <topband@contesting.com>
Date: Thu, 7 Apr 2022 16:00:05 +0000 (UTC)
The design or at least many like it have been around for years.Otherwise known as a Conical Monopole 73sBobG3REP _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Re
Conical Monopole Say that fast 3 times: Conical Monopole Conical Monopole Conical Monopole Right. The first time I saw one, it was called a Folded Unipole. My 160 support can be probably 80' or 24 m
The first time I saw one it was called the Folded Umbrella and was popularized by the late WB5IIR, John Haerle. He wrote an article for HR in May of 1979. He also described it in his book, "The Easy
Author: James V Redding PE via Topband <topband@contesting.com>
Date: Thu, 7 Apr 2022 19:59:04 -0400
See https://apps.dtic.mil/sti/citations/AD0693997 Sort of worthless as the takeoff angle snf gain is not as good as collinear arrays or rhombics. 2:1 frequency at 75 ohms. Visible in pictures ot WW2
I think the disc-cone is a close relative. There is one of these on the bow of the Iowa BB in Long Beach. During a tour by W6HB, I was told they would have 25+ full duplex TTY circuits open at one ti
I have been using at C6AGU a similar design that I call "Fat Vertical". Scroll down on the C6AGU QRZ.com page to see a picture of it. The antenna is 60' tall with sloping loading wires attached to th
Author: James V Redding PE via Topband <topband@contesting.com>
Date: Fri, 8 Apr 2022 11:22:24 -0400
And then there is this: https://en.wikipedia.org/wiki/Umbrella_antenna#/media/File:Main_antenna_feed_Anthorn.jpg If you had one of these in your backyard, I am sure the entire state would decide it w
Then there is this 825 foot VLF umbrella antenna installed in 1912 on Radio Road in Little Egg Harbor, NJ. At the time it was the second tallest structure in the world, second only to the Eiffel towe
Top hats could be skirts if you feed the antenna through them. This design looks a lot like a conical monopole. Is there a distinction? Terry N6RY _________________ Searchable Archives: http://www.co
Some years ago, I recall an AM station in Washington, DC, having their tower on the roof of a three story building. It was either a unipole or had skirted radials. I want to say that it may have been
Essentially all 1920s AM broadcast stations used roof top antennas until the 1/4 wave vertical with 120 1/2 wavelength radials became the standard in the 1930s 73 Frank W3LPL Some years ago, I recall