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Take these models for example...

The DB

DB, I tried to duplicate your models above at 24' feet. I had to guess at the dimensions and my model is at 27.205 mhz. I had to find by testing the Ground Description you might have used, I don't have a selection for moderate.

I was able to nearly duplicate both cmctest1 and cmctest1c to the same pattern and gain results as your models show above.

But when I removed the radials from model cmctest1c to try and duplicate your model cmctest1b, the model feel apart and produced the terrible pattern and gain as noted in the attached PDF file below.

In your descriptions you tell me that the cmctest1c (the blue lines) are the same as the "b" model except it include radials.

I cannot find a problem with this simple Imax with a mast attached to the Earth and no radials...that might explain this difference in results with your model "B".

The other two models I tried to duplicate came out almost identical in gain and pattern to your results.

Can you tell me how many segments you used for your wires, and the wire diameters used?

Also I'm using a ground description that is noted as "Very Poor" with details that read the following in order to get close to your numbers.

Conduction=0.001 S/m

Diel Const=5

Can you give me the details for the soil you used.

I wasn't expecting this development at all.

[/QUOTE]

<blockquote data-quote="Marconi" data-source="post: 549548" data-attributes="member: 903">Take these models for example...<img src="http://hittman.us/pictures/4-12-16/1.jpg" alt="" class="fr-fic fr-dii fr-draggable " data-size="" style="" /><a href="http://hittman.us" target="_blank">The DB</a></blockquote>DB, I tried to duplicate your models above at 24&#039; feet. I had to guess at the dimensions and my model is at 27.205 mhz. I had to find by testing the Ground Description you might have used, I don&#039;t have a selection for moderate.I was able to nearly duplicate both cmctest1 and cmctest1c to the same pattern and gain results as your models show above.But when I removed the radials from model cmctest1c to try and duplicate your model cmctest1b, the model feel apart and produced the terrible pattern and gain as noted in the attached PDF file below.In your descriptions you tell me that the cmctest1c (the blue lines) are the same as the &quot;b&quot; model except it include radials.I cannot find a problem with this simple Imax with a mast attached to the Earth and no radials...that might explain this difference in results with your model &quot;B&quot;.The other two models I tried to duplicate came out almost identical in gain and pattern to your results.Can you tell me how many segments you used for your wires, and the wire diameters used?Also I&#039;m using a ground description that is noted as &quot;Very Poor&quot; with details that read the following in order to get close to your numbers.Conduction=0.001 S/mDiel Const=5Can you give me the details for the soil you used.I wasn&#039;t expecting this development at all.[/QUOTE]

[QUOTE="Marconi, post: 549548, member: 903"] Take these models for example... [IMG]http://hittman.us/pictures/4-12-16/1.jpg[/IMG] [URL='http://hittman.us'][COLOR=#000000]The DB[/COLOR][/URL][/QUOTE] DB, I tried to duplicate your models above at 24' feet. I had to guess at the dimensions and my model is at 27.205 mhz. I had to find by testing the Ground Description you might have used, I don't have a selection for moderate. I was able to nearly duplicate both cmctest1 and cmctest1c to the same pattern and gain results as your models show above. But when I removed the radials from model cmctest1c to try and duplicate your model cmctest1b, the model feel apart and produced the terrible pattern and gain as noted in the attached PDF file below. In your descriptions you tell me that the cmctest1c (the blue lines) are the same as the "b" model except it include radials. I cannot find a problem with this simple Imax with a mast attached to the Earth and no radials...that might explain this difference in results with your model "B". The other two models I tried to duplicate came out almost identical in gain and pattern to your results. Can you tell me how many segments you used for your wires, and the wire diameters used? Also I'm using a ground description that is noted as "Very Poor" with details that read the following in order to get close to your numbers. Conduction=0.001 S/m Diel Const=5 Can you give me the details for the soil you used. I wasn't expecting this development at all. [/QUOTE]

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