Thank you! Very helpful. Since you mentioned, I did an image search in Bing for "antenna polar plot" and find a mix of grid circles, some evenly spaced to maintain the dBi scaling, others undoing it to reveal the real-world lobe profile.

And in the case of the Nec2Go program's default, it was showing real-world … which I was trying to emulate.

So now I'm thinking I should make it an option to scale the grid either way. Which means I'm half done, versus wrong. I still want the other, as it is more intuitive to look at when wanting to overlay the outline onto a great circle map for positioning. Being able to clearly read the values below -20 dBi is of very small interest, yes?

Respectfully,
Gan, KY8D

In reply to Re^4: Logarithmic Scale by aplonis
in thread Logarithmic Scale by aplonis

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