Reg Edwards wrote:
Reg, what about Rho = SQRT(P-/P+) and SWR=(1+Rho)/(1-Rho)?
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Cec, That's a calculation, merely arithmetic, not a measurement.

It applies only to a long line lossless line which does not exist but
Zo must be 50 ohms. And nobody has the foggiest idea where max-volts
and min-volts are located. And so the calculated information is
useless except for trolling on newsgroups. ;o)
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Reg.
Hi Reg, Do you advocate changing the measurement and calaculation that
all our handy little Antenna Analyzers report as SWR to TLI? That
would cost a lot to re-tool. My MFJ-259, and I think you have stated
that you have one also, reports lots of useful info, and uses a bridge,
a PIC, and a neat display. SWR as well as many other parameters are
measured indirectly, and calculated with the Micro. You could make the
agrument that all the other stuff the Analyzer reports needs to be more
descriptive, but it would cost too much to change. If you read the
manual, and know what the displays on any meter really means, then why
change anything?
Gary N4AST