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007, I think you meant to type 5/8 wave rather than 5/16 wave.

My model of the 5/8 wave with slanted 5/8 wave radials makes strange looking patterns both over real Earth and in free space. They are nothing like the Gain Master. The gain and angle shows to be great however, but just like the Starduster the radiator and the radials are not in phase...like the Gain Master.

So, if my model is close to correct, the 5/8 wave with 5/8 wave radials does not make a pattern similar to the Gain Master. The antennas do look similar by design, but I can't fathom a guess why the patterns are so different...just to say the phase is different. The Starduster looks similar to this long 5/8 wave idea of yours, and I know it works fine at 1/2 wave, so I don't know why the 5/8 wouldn't also.

NM5K here in Houston designs and models his Imax in a similar fashion as you describe and it too shows improved gain. I have posted his models in my album: http://www.worldwidedx.com/members/marconi-albums-eznec-modeling-10-meter-verticals-nm5k-demo-version.html.

By the way I have just modeled the original Sigma 4 to meet almost all specs except I left the radials as a single .50" wire. I just posted it to my album and it has the hoop as a circular hoop and not square as earlier models showed: http://www.worldwidedx.com/members/marconi-albums-henry-s-sigma-4-modified-specs-resonance.html

<blockquote data-quote="Marconi" data-source="post: 242817" data-attributes="member: 903">007, I think you meant to type 5/8 wave rather than 5/16 wave. &nbsp;My model of the 5/8 wave with slanted 5/8 wave radials makes strange looking patterns both over real Earth and in free space. They are nothing like the Gain Master. The gain and angle shows to be great however, but just like the Starduster the radiator and the radials are not in phase...like the Gain Master. &nbsp;So, if my model is close to correct, the 5/8 wave with 5/8 wave radials does not make a pattern similar to the Gain Master. The antennas do look similar by design, but I can&#039;t fathom a guess why the patterns are so different...just to say the phase is different. The Starduster looks similar to this long 5/8 wave idea of yours, and I know it works fine at 1/2 wave, so I don&#039;t know why the 5/8 wouldn&#039;t also.&nbsp;NM5K here in Houston designs and models his Imax in a similar fashion as you describe and it too shows improved gain. I have posted his models in my album: <a href="http://www.worldwidedx.com/members/marconi-albums-eznec-modeling-10-meter-verticals-nm5k-demo-version.html" target="_blank">http://www.worldwidedx.com/members/marconi-albums-eznec-modeling-10-meter-verticals-nm5k-demo-version.html</a>. &nbsp;By the way I have just modeled the original Sigma 4 to meet almost all specs except I left the radials as a single .50&quot; wire. I just posted it to my album and it has the hoop as a circular hoop and not square as earlier models showed: <a href="http://www.worldwidedx.com/members/marconi-albums-henry-s-sigma-4-modified-specs-resonance.html" target="_blank">http://www.worldwidedx.com/members/marconi-albums-henry-s-sigma-4-modified-specs-resonance.html</a></blockquote>

[QUOTE="Marconi, post: 242817, member: 903"] 007, I think you meant to type 5/8 wave rather than 5/16 wave. My model of the 5/8 wave with slanted 5/8 wave radials makes strange looking patterns both over real Earth and in free space. They are nothing like the Gain Master. The gain and angle shows to be great however, but just like the Starduster the radiator and the radials are not in phase...like the Gain Master. So, if my model is close to correct, the 5/8 wave with 5/8 wave radials does not make a pattern similar to the Gain Master. The antennas do look similar by design, but I can't fathom a guess why the patterns are so different...just to say the phase is different. The Starduster looks similar to this long 5/8 wave idea of yours, and I know it works fine at 1/2 wave, so I don't know why the 5/8 wouldn't also. NM5K here in Houston designs and models his Imax in a similar fashion as you describe and it too shows improved gain. I have posted his models in my album: [URL]http://www.worldwidedx.com/members/marconi-albums-eznec-modeling-10-meter-verticals-nm5k-demo-version.html[/URL]. By the way I have just modeled the original Sigma 4 to meet almost all specs except I left the radials as a single .50" wire. I just posted it to my album and it has the hoop as a circular hoop and not square as earlier models showed: [URL]http://www.worldwidedx.com/members/marconi-albums-henry-s-sigma-4-modified-specs-resonance.html[/URL] [/QUOTE]

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