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Old 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

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