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I also agree with the isolation idea helping with RF on the mast, just like you say. I don't see how it will help with the coax however, unless a suitable choke is added there, but if a choke is installed it seems to me that would work for the mast too, so maybe isolation is not necessary. That doesn't address the need for radial though.

Yep I noticed that I didn't always put the green cursor on the lowest lobe after I scanned the models. Sometimes it is hard to capture all aspects of the model information I hope to present to help tell my message.

Bob, I was just doing a model for Needle Bender for his Imax in a tree idea at 65' feet and when I added the GPK with 40*- 45* degrees slanted I didn't notice the problem I just presented to you earlier.

The only difference in his model over your's was the height and the length of the radials. NB, asked me to use 72" radials like the GPK comes. I didn't check that out as a possible reason here, but I'll have to consider that maybe 1/4 wave radials are too long, and maybe that is why the kit is made with 72" radials. Of course the height difference affects the results too.

See below the model I did for NB.

[ATTACH]7301[/ATTACH]

<blockquote data-quote="Marconi" data-source="post: 367493" data-attributes="member: 903">I also agree with the isolation idea helping with RF on the mast, just like you say. I don&#039;t see how it will help with the coax however, unless a suitable choke is added there, but if a choke is installed it seems to me that would work for the mast too, so maybe isolation is not necessary. That doesn&#039;t address the need for radial though.&nbsp;Yep I noticed that I didn&#039;t always put the green cursor on the lowest lobe after I scanned the models. Sometimes it is hard to capture all aspects of the model information I hope to present to help tell my message.&nbsp;Bob, I was just doing a model for Needle Bender for his Imax in a tree idea at 65&#039; feet and when I added the GPK with 40*- 45* degrees slanted I didn&#039;t notice the problem I just presented to you earlier.&nbsp;The only difference in his model over your&#039;s was the height and the length of the radials. NB, asked me to use 72&quot; radials like the GPK comes. I didn&#039;t check that out as a possible reason here, but I&#039;ll have to consider that maybe 1/4 wave radials are too long, and maybe that is why the kit is made with 72&quot; radials. Of course the height difference affects the results too. &nbsp;See below the model I did for NB.&nbsp;[ATTACH]7301[/ATTACH]</blockquote>

[QUOTE="Marconi, post: 367493, member: 903"] I also agree with the isolation idea helping with RF on the mast, just like you say. I don't see how it will help with the coax however, unless a suitable choke is added there, but if a choke is installed it seems to me that would work for the mast too, so maybe isolation is not necessary. That doesn't address the need for radial though. Yep I noticed that I didn't always put the green cursor on the lowest lobe after I scanned the models. Sometimes it is hard to capture all aspects of the model information I hope to present to help tell my message. Bob, I was just doing a model for Needle Bender for his Imax in a tree idea at 65' feet and when I added the GPK with 40*- 45* degrees slanted I didn't notice the problem I just presented to you earlier. The only difference in his model over your's was the height and the length of the radials. NB, asked me to use 72" radials like the GPK comes. I didn't check that out as a possible reason here, but I'll have to consider that maybe 1/4 wave radials are too long, and maybe that is why the kit is made with 72" radials. Of course the height difference affects the results too. See below the model I did for NB. [ATTACH]7301.vB[/ATTACH] [/QUOTE]

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