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#19
September 27th 05, 03:54 AM
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Owen Duffy wrote:
On Tue, 27 Sep 2005 02:25:11 +0000 (UTC), wrote: SWR is nothing more than a dimensionless impedance ratio. Is that so... Owen -- Yes, it is so and it is equal to: SWR = (A + B)/(A - B) Whe A = sqrt ( (R + Z)^2 + X^2 ) B = sqrt ( (R - Z)^2 + X^2 ) R = resistive component of load impedance in Ohms. X = reactive component of load impedance in Ohms. Z = reference impedance (purely resistive) in Ohms If you don't believe it, get some resistors, capacitors and a half way decent SWR meter and do some experiments; no transmission line required. -- Jim Pennino Remove .spam.sux to reply. |
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