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Bob, I'm not sure this is exactly what you might be looking for, but I took my Imax and configured it 6 ways, three with GPK and three without. I made one of the three with no mast, one with mast, and the other with an isolated mast. I include a pattern overlay for each of these 6 antennas, along with the antenna view for antennas with and without the mast, and with and without the GPK...just to show what Eznec indicates for the current flows. I see nothing that disagrees with your observations.

I also find that height plays a significant part in how these currents flow and don't flow, so that has to be considered here as well. These examples are just for 40' feet.

This height might be suggestive of the worst case scenario that W8JI modeled in his report on the issue.

Surprisingly this work was more confusing to keep up with the descriptors and titles along with the proper pattern traces than it was to do the models.

Hope this helps.

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<blockquote data-quote="Marconi" data-source="post: 310866" data-attributes="member: 903">Bob, I&#039;m not sure this is exactly what you might be looking for, but I took my Imax and configured it 6 ways, three with GPK and three without. I made one of the three with no mast, one with mast, and the other with an isolated mast. I include a pattern overlay for each of these 6 antennas, along with the antenna view for antennas with and without the mast, and with and without the GPK...just to show what Eznec indicates for the current flows. I see nothing that disagrees with your observations.&nbsp;I also find that height plays a significant part in how these currents flow and don&#039;t flow, so that has to be considered here as well. These examples are just for 40&#039; feet. &nbsp;This height might be suggestive of the worst case scenario that W8JI modeled in his report on the issue.&nbsp;Surprisingly this work was more confusing to keep up with the descriptors and titles along with the proper pattern traces than it was to do the models.&nbsp;Hope this helps.&nbsp;[ATTACH]5510[/ATTACH]&nbsp;[ATTACH]5511[/ATTACH]</blockquote>

[QUOTE="Marconi, post: 310866, member: 903"] Bob, I'm not sure this is exactly what you might be looking for, but I took my Imax and configured it 6 ways, three with GPK and three without. I made one of the three with no mast, one with mast, and the other with an isolated mast. I include a pattern overlay for each of these 6 antennas, along with the antenna view for antennas with and without the mast, and with and without the GPK...just to show what Eznec indicates for the current flows. I see nothing that disagrees with your observations. I also find that height plays a significant part in how these currents flow and don't flow, so that has to be considered here as well. These examples are just for 40' feet. This height might be suggestive of the worst case scenario that W8JI modeled in his report on the issue. Surprisingly this work was more confusing to keep up with the descriptors and titles along with the proper pattern traces than it was to do the models. Hope this helps. [ATTACH]5510.vB[/ATTACH] [ATTACH]5511.vB[/ATTACH] [/QUOTE]

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