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Bob, I forgot to ask you how your radials were configured in the test you noted above. The radials on the ..625 model I posted are not typical for the Imax, and I'm not even sure you're talking about and Imax/A99. I personally think the .625 wave Imax does a good job of decoupling the antenna from the feed line at this particular height of 40' feet in this model, but you can see by the red line of the two mast, that isolating does a little bit better when it has a horizontal radial setup. That could be different with slanted down radials and the angle of slant might make some notable difference.

If you're talking about an Imax/A99 with slanted down radials then let me know, and I'll fix the models, and see what Eznec suggest.

[QUOTE="Marconi, post: 367208, member: 903"] Bob, I forgot to ask you how your radials were configured in the test you noted above. The radials on the ..625 model I posted are not typical for the Imax, and I'm not even sure you're talking about and Imax/A99. I personally think the .625 wave Imax does a good job of decoupling the antenna from the feed line at this particular height of 40' feet in this model, but you can see by the red line of the two mast, that isolating does a little bit better when it has a horizontal radial setup. That could be different with slanted down radials and the angle of slant might make some notable difference. If you're talking about an Imax/A99 with slanted down radials then let me know, and I'll fix the models, and see what Eznec suggest. [/QUOTE]

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