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#1
June 27th 08, 04:33 PM
posted to rec.radio.amateur.antenna
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Parabolic Dish Questions
amdx wrote:
I was going to attempt this but I don't know how to calculate the area (A) of my non circular dish. Any help there? Calculus? Graphic solution? -- 73, Cecil http://www.w5dxp.com |
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#2
June 27th 08, 05:47 PM
posted to rec.radio.amateur.antenna
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Parabolic Dish Questions
Area = PI*a*b, as defined below.
http://en.wikipedia.org/wiki/Ellipse Frank "Cecil Moore" wrote in message ... amdx wrote: I was going to attempt this but I don't know how to calculate the area (A) of my non circular dish. Any help there? Calculus? Graphic solution? -- 73, Cecil http://www.w5dxp.com |
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#3
June 27th 08, 06:47 PM
posted to rec.radio.amateur.antenna
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Parabolic Dish Questions
"Frank" wrote in message news:0R89k.658$7%6.42@edtnps82... Area = PI*a*b, as defined below. http://en.wikipedia.org/wiki/Ellipse Frank Thanks Frank, From the wiki "The area enclosed by an ellipse is ?ab, where (as before) a and b are the ellipse's semimajor and semiminor axes." Now back to, why did I want to now that. Mike |
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