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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Impedance\s+of\s+two\s+wires\s+to\s+ground\?\s*$/: 6 ]

Total 6 documents matching your query.

1. Topband: Impedance of two wires to ground? (score: 1)
Author: Michael James <mrscience65704@yahoo.com>
Date: Wed, 14 Jan 2009 14:03:53 -0800 (PST)
Hello, I'm looking for the formula to calculate the surge impedance of two wires parallel to the ground, given the diameter of the wires, the wire spacing, and height above ground. I know I've seen t
/archives//html/Topband/2009-01/msg00131.html (7,076 bytes)

2. Re: Topband: Impedance of two wires to ground? (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Wed, 14 Jan 2009 16:04:28 -0800 (PST)
See page 197 of: http://www.pmillett.com/Books/FTR_ref_data.pdf The first formula is for common mode and the second is for differential mode. Rick N6RK _______________________________________________
/archives//html/Topband/2009-01/msg00132.html (8,159 bytes)

3. Re: Topband: Impedance of two wires to ground? (score: 1)
Author: Terry Conboy <n6ry@arrl.net>
Date: Wed, 14 Jan 2009 16:29:44 -0800
From the Johnson & Jasik "Antenna Engineering Handbook, 2nd Edition", page 42-9 Differential mode impedance (between conductors): Zo = 276/sqrt(epsilon) * log10 (4h / (d * sqrt(1 + (2h/S)^2))) Common
/archives//html/Topband/2009-01/msg00133.html (8,390 bytes)

4. Re: Topband: Impedance of two wires to ground? (score: 1)
Author: Tree <tree@kkn.net>
Date: Wed, 14 Jan 2009 17:06:43 -0800
Perhaps this might help: http://www.sigcon.com/lib/htm/ROUND.htm Well - some of the more contentious issues have been resolved years ago. Tree N6TR _______________________________________________ Top
/archives//html/Topband/2009-01/msg00134.html (8,199 bytes)

5. Topband: Impedance of two wires to ground? (score: 1)
Author: "Lee K7TJR" <k7tjr@msn.com>
Date: Wed, 14 Jan 2009 17:21:29 -0800
Here is a web link that calculates two wire Beverage transformers. Perhaps this will work for your impedance quest. I believe this to be based in the Misek book. http://www.csgnetwork.com/antennaerpc
/archives//html/Topband/2009-01/msg00135.html (7,126 bytes)

6. Re: Topband: Impedance of two wires to ground? (score: 1)
Author: Michael James <mrscience65704@yahoo.com>
Date: Wed, 14 Jan 2009 19:17:40 -0800 (PST)
Hello, I want to thank all the friendly, helpful folks on this list who responded to my question. Not only was my original question answered, but a lot of other useful info and links were provided. 7
/archives//html/Topband/2009-01/msg00136.html (7,428 bytes)

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