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I also wanted to add that your thoughts about dual cones and a dipole are supported by sound RF theory dating back to at least the cold war era. If you form a dipole from a pair of cones, with the cones flaring outward from the center feedline, it makes a very broadbanded dipole without a loss in gain. It can be orientated either vertical or horizontal.

The infamous "Russian Woodpecker" generated one of the worlds most powerful RF signals for over a decade using a massive array constructed from dipoles of this design. The "tower" stands over 500 feet tall and over 1/4 mile long. It was used to operate an HF over the horizon radar system. It's major side effect was that it jammed up a good slice of the center of the HF spectrum worldwide!

This was a serious issue during the 70's and 80's. While the end of the cold war would eventually see these things come to an end, another incident played a role in stopping the "Woodpecker". Against the advice of engineers working at the Chernobyl nuclear power plant, a test was conducted to see how the reactor would respond at reduced output with an interrupted main cooling system.

It turns out they shouldn't have done that. The reactor had already shown signs that it could not be controlled at extreme low output levels. Nevermind tampering with the cooling and bypassing the protection systems simultaneously. Chernobyl exploded with the over the horizon radar system located within eyesight from it. An excellent photo section of the radar antenna can be seen here English Russia » “Duga”, the Steel Giant Near Chernobyl

PS. How would you like to connect your 40 meter rig into that antenna?

<blockquote data-quote="Shockwave" data-source="post: 228756" data-attributes="member: 10882">I also wanted to add that your thoughts about dual cones and a dipole are supported by sound RF theory dating back to at least the cold war era. If you form a dipole from a pair of cones, with the cones flaring outward from the center feedline, it makes a very broadbanded dipole without a loss in gain. It can be orientated either vertical or horizontal. The infamous &quot;Russian Woodpecker&quot; generated one of the worlds most powerful RF signals for over a decade using a massive array constructed from dipoles of this design. The &quot;tower&quot; stands over 500 feet tall and over 1/4 mile long. It was used to operate an HF over the horizon radar system. It&#039;s major side effect was that it jammed up a good slice of the center of the HF spectrum worldwide!This was a serious issue during the 70&#039;s and 80&#039;s. While the end of the cold war would eventually see these things come to an end, another incident played a role in stopping the &quot;Woodpecker&quot;. Against the advice of engineers working at the Chernobyl nuclear power plant, a test was conducted to see how the reactor would respond at reduced output with an interrupted main cooling system.It turns out they shouldn&#039;t have done that. The reactor had already shown signs that it could not be controlled at extreme low output levels. Nevermind tampering with the cooling and bypassing the protection systems simultaneously. Chernobyl exploded with the over the horizon radar system located within eyesight from it. An excellent photo section of the radar antenna can be seen here <a href="http://englishrussia.com/index.php/2008/04/28/duga-the-steel-giant-near-chernobyl/" target="_blank">English Russia » “Duga”, the Steel Giant Near Chernobyl</a>PS. How would you like to connect your 40 meter rig into that antenna?</blockquote>

[QUOTE="Shockwave, post: 228756, member: 10882"] I also wanted to add that your thoughts about dual cones and a dipole are supported by sound RF theory dating back to at least the cold war era. If you form a dipole from a pair of cones, with the cones flaring outward from the center feedline, it makes a very broadbanded dipole without a loss in gain. It can be orientated either vertical or horizontal. The infamous "Russian Woodpecker" generated one of the worlds most powerful RF signals for over a decade using a massive array constructed from dipoles of this design. The "tower" stands over 500 feet tall and over 1/4 mile long. It was used to operate an HF over the horizon radar system. It's major side effect was that it jammed up a good slice of the center of the HF spectrum worldwide! This was a serious issue during the 70's and 80's. While the end of the cold war would eventually see these things come to an end, another incident played a role in stopping the "Woodpecker". Against the advice of engineers working at the Chernobyl nuclear power plant, a test was conducted to see how the reactor would respond at reduced output with an interrupted main cooling system. It turns out they shouldn't have done that. The reactor had already shown signs that it could not be controlled at extreme low output levels. Nevermind tampering with the cooling and bypassing the protection systems simultaneously. Chernobyl exploded with the over the horizon radar system located within eyesight from it. An excellent photo section of the radar antenna can be seen here [url=http://englishrussia.com/index.php/2008/04/28/duga-the-steel-giant-near-chernobyl/]English Russia » “Duga”, the Steel Giant Near Chernobyl[/url] PS. How would you like to connect your 40 meter rig into that antenna? [/QUOTE]

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