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I did this for you but there are considerations I need to talk about.

First the plot. Unfortunately I modified the file for the I-10K/Shockwave antenna model and didn't make a backup first. Some things are different, but it is close. Unfortunately this version has slightly less gain...

Both antennas are matched to 1.05:1 or better SWR. Both antennas have an X of less than 1. Both antennas are made out of T6 aluminum, and have a base height of 11 meters. These antennas are not at the same tip height. I am also not done with the vector model, this was an early run with almost no tweaking done. I think I can get its gain figure while matched up some more. I still have variables like ring height to apply as see what happens.

There is also a difference in how I had to match these antennas. While the i10k-2 model is entirely matched using elements, I had to add capacitance to mimic the gamma match on the vector model. Because of this, I would expect the Vector model to actually have slightly less gain in reality, although not much less. How much is hard to say, unfortunately, as I have no other way with 4NEC2 to simulate the effects of one tube inside of another, at least none that I am aware of, this is the best I can do at the moment.

The DB

<blockquote data-quote="The DB" data-source="post: 564866" data-attributes="member: 21346">I did this for you but there are considerations I need to talk about.First the plot.&nbsp; Unfortunately I modified the file for the I-10K/Shockwave antenna model and didn&#039;t make a backup first.&nbsp; Some things are different, but it is close.&nbsp; Unfortunately this version has slightly less gain...<img src="http://hittman.us/pictures/10-1-16/v4k-shockwave.jpg" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" />Both antennas are matched to 1.05:1 or better SWR.&nbsp; Both antennas have an X of less than 1.&nbsp; Both antennas are made out of T6 aluminum, and have a base height of 11 meters.&nbsp; These antennas are not at the same tip height.&nbsp; I am also not done with the vector model, this was an early run with almost no tweaking done.&nbsp; I think I can get its gain figure while matched up some more.&nbsp; I still have variables like ring height to apply as see what happens.There is also a difference in how I had to match these antennas.&nbsp; While the i10k-2 model is entirely matched using elements, I had to add capacitance to mimic the gamma match on the vector model.&nbsp; Because of this, I would expect the Vector model to actually have slightly less gain in reality, although not much less.&nbsp; How much is hard to say, unfortunately, as I have no other way with 4NEC2 to simulate the effects of one tube inside of another, at least none that I am aware of, this is the best I can do at the moment.<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 564866, member: 21346"] I did this for you but there are considerations I need to talk about. First the plot. Unfortunately I modified the file for the I-10K/Shockwave antenna model and didn't make a backup first. Some things are different, but it is close. Unfortunately this version has slightly less gain... [IMG]http://hittman.us/pictures/10-1-16/v4k-shockwave.jpg[/IMG] Both antennas are matched to 1.05:1 or better SWR. Both antennas have an X of less than 1. Both antennas are made out of T6 aluminum, and have a base height of 11 meters. These antennas are [COLOR=#ff0000]not[/COLOR] at the same tip height. I am also not done with the vector model, this was an early run with almost no tweaking done. I think I can get its gain figure while matched up some more. I still have variables like ring height to apply as see what happens. There is also a difference in how I had to match these antennas. While the i10k-2 model is entirely matched using elements, I had to add capacitance to mimic the gamma match on the vector model. Because of this, I would expect the Vector model to actually have slightly less gain in reality, although not much less. How much is hard to say, unfortunately, as I have no other way with 4NEC2 to simulate the effects of one tube inside of another, at least none that I am aware of, this is the best I can do at the moment. [URL='http://hittman.us'][COLOR=#000000]The DB[/COLOR][/URL] [/QUOTE]

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