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Bob I don't remember this project, but I have 36 iterations for the Vortex M2 or the Mark 2...which might be the same antenna.

Do you have a title for the model you referred to here? It will save me from taking a wild guess at what you're looking at. The model I happened to check was set at 27.205 MHz. It has radials that are 163" inches long, and a radiator 318" inches which is close to 3/8 and 3/4 WLs respectively.

The model also shows a 4.20:1 SWR bandwidth, but the resonance is at 27.5 MHz.

So, this model needs some work and is not a good example, because when I set it in Free Space so I could check the Average Gain for accuracy...the model failed miserably. I have 35 more I could check, so maybe you can help this old man out, and then I will check and report if what was done back then was close to the facts being talked about here.

<blockquote data-quote="Marconi" data-source="post: 740020" data-attributes="member: 903">Bob I don&#039;t remember this project, but I have 36 iterations for the Vortex M2 or the Mark 2...which might be the same antenna.Do you have a title for the model you referred to here? It will save me from taking a wild guess at what you&#039;re looking at. The model I happened to check was set at 27.205 MHz. It has radials that are 163&quot; inches long, and a radiator 318&quot; inches which is close to 3/8 and 3/4 WLs respectively.The model also shows a 4.20:1 SWR bandwidth, but the resonance is at 27.5 MHz.So, this model needs some work and is not a good example, because when I set it in Free Space so I could check the Average Gain for accuracy...the model failed miserably. I have 35 more I could check, so maybe you can help this old man out, and then I will check and report if what was done back then was close to the facts being talked about here.</blockquote>

[QUOTE="Marconi, post: 740020, member: 903"] Bob I don't remember this project, but I have 36 iterations for the Vortex M2 or the Mark 2...which might be the same antenna. [B]Do you have a title for the model you referred to here?[/B] It will save me from taking a wild guess at what you're looking at. The model I happened to check was set at 27.205 MHz. It has radials that are 163" inches long, and a radiator 318" inches which is close to 3/8 and 3/4 WLs respectively. The model also shows a 4.20:1 SWR bandwidth, but the resonance is at 27.5 MHz. So, this model needs some work and is not a good example, because when I set it in Free Space so I could check the Average Gain for accuracy...the model failed miserably. I have 35 more I could check, so maybe you can help this old man out, and then I will check and report if what was done back then was close to the facts being talked about here. [/QUOTE]

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