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Bob, this is to add to what I've said before, and what I said above.

My model of the 5/8 wave also shows a slightly better looking pattern than the S4, with a little less gain over Real Earth. This little difference may show up because the physical S4 current max is a bit higher than the 5/8 wave when mounted on the same mast. Both of the factors noted above support the idea that the S4, being a bit higher, shows a bit better results.

I have reported this in my Real World testing too, but I didn't have a clue as to why at the time.

With these models in Free Space the patterns are very similar with the 5/8 wave showing a little more gain at 3* degrees higher angle than the S4.

See the model of my I-10K vs S4 below to confirm the numbers above.

[QUOTE="Marconi, post: 499744, member: 903"] Bob, this is to add to what I've said before, and what I said above. My model of the 5/8 wave also shows a slightly better looking pattern than the S4, with a little less gain over Real Earth. This little difference may show up because the physical S4 current max is a bit higher than the 5/8 wave when mounted on the same mast. Both of the factors noted above support the idea that the S4, being a bit higher, shows a bit better results. I have reported this in my Real World testing too, but I didn't have a clue as to why at the time. With these models in Free Space the patterns are very similar with the 5/8 wave showing a little more gain at 3* degrees higher angle than the S4. See the model of my I-10K vs S4 below to confirm the numbers above. [/QUOTE]

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