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I understand the limit is not useful in modeling Bob. I asked if you had the Eznec Demo version, so maybe you could follow me in checking out the model DipFL.ez.

It is a very interesting model in what and how it does what it does. BTW this file was made to work with the Eznec Demo version and has only 20 segments...the limit. So you could could check this model out and see the issues I'm talking about.

The DipFL.ez file that Roy Lewallen includes with his Eznec program has the Feed Point in a strange location...at the end of the Feed Line. There are other things strange about this model too, but they are not discussed in the Antenna Notes, and I can only speculate as to possibly why. This might be hard to describe if you can't see the model in detail.

W8JI made a model very similar to the DipFL.ez model and it produces similar results. He also talks about the currents on the FL, and shows us the current magnitude on each segment in his model. That also makes me wonder, but I can't check his model out, because he give no details...even the frequency is omitted.

So, we see no currents on both models, and again I don't understand that yet.

You may be right about however, this Eznec FL Tool is not able to model a FL using the FL model + another wire...and showing us Common Mode Currents as a result.

Bob, did anybody in the group you head talking about the FL feature in Eznec...ever discuss the idea that the FL Tool could not model a FL + 1 added wire to the model and show CMC if they were present in such a model?

Let me know if you want to look at this model, DipFL.ez that Roy included in his software, for us to use and demonstrate this Eznec Feed Line feature.

Here is the link to W8JI article on this issue. Go to "Jump down this page to the Dipole models."

https://www.w8ji.com/common_mode_current.htm

<blockquote data-quote="Marconi" data-source="post: 744851" data-attributes="member: 903">I understand the limit is not useful in modeling Bob. I asked if you had the Eznec Demo version, so maybe you could follow me in checking out the model DipFL.ez. It is a very interesting model in what and how it does what it does. BTW this file was made to work with the Eznec Demo version and has only 20 segments...the limit. So you could could check this model out and see the issues I&#039;m talking about.The DipFL.ez file that Roy Lewallen includes with his Eznec program has the Feed Point in a strange location...at the end of the Feed Line. There are other things strange about this model too, but they are not discussed in the Antenna Notes, and I can only speculate as to possibly why. This might be hard to describe if you can&#039;t see the model in detail.W8JI made a model very similar to the DipFL.ez model and it produces similar results. He also talks about the currents on the FL, and shows us the current magnitude on each segment in his model. That also makes me wonder, but I can&#039;t check his model out, because he give no details...even the frequency is omitted. So, we see no currents on both models, and again I don&#039;t understand that yet. You may be right about however, this Eznec FL Tool is not able to model a FL using the FL model + another wire...and showing us Common Mode Currents as a result.Bob, did anybody in the group you head talking about the FL feature in Eznec...ever discuss the idea that the FL Tool could not model a FL + 1 added wire to the model and show CMC if they were present in such a model?Let me know if you want to look at this model, DipFL.ez that Roy included in his software, for us to use and demonstrate this Eznec Feed Line feature.Here is the link to W8JI article on this issue. Go to &quot;Jump down this page to the Dipole models.&quot;<a href="https://www.w8ji.com/common_mode_current.htm" target="_blank">https://www.w8ji.com/common_mode_current.htm</a></blockquote>

[QUOTE="Marconi, post: 744851, member: 903"] [SIZE=5] I understand the limit is not useful in modeling Bob. I asked if you had the Eznec Demo version, so maybe you could follow me in checking out the model DipFL.ez. It is a very interesting model in what and how it does what it does. BTW this file was made to work with the Eznec Demo version and has only 20 segments...the limit. So you could could check this model out and see the issues I'm talking about. The DipFL.ez file that Roy Lewallen includes with his Eznec program has the Feed Point in a strange location...at the end of the Feed Line. There are other things strange about this model too, but they are not discussed in the Antenna Notes, and I can only speculate as to possibly why. This might be hard to describe if you can't see the model in detail. W8JI made a model very similar to the DipFL.ez model and it produces similar results. He also talks about the currents on the FL, and shows us the current magnitude on each segment in his model. [B]That also makes me wonder, but I can't check his model out, because he give no details...even the frequency is omitted.[/B] [B]So, we see no currents on both models, and again I don't understand that yet. [/B] [B]You may be right about however,[/B] this Eznec FL Tool is not able to model a FL using the FL model + another wire...and showing us Common Mode Currents as a result. Bob, did anybody in the group you head talking about the FL feature in Eznec...ever discuss the idea that the FL Tool could not model a FL + 1 added wire to the model and show CMC if they were present in such a model? Let me know if you want to look at this model, DipFL.ez that Roy included in his software, for us to use and demonstrate this Eznec Feed Line feature. Here is the link to W8JI article on this issue. Go to "Jump down this page to the Dipole models." [B][URL]https://www.w8ji.com/common_mode_current.htm[/URL][/B][/SIZE] [/QUOTE]

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