On Sat, 16 Aug 2003 14:50:29 -0500, W5DXP
wrote:

Richard Clark wrote:
Do you have a question about it following that point in time?

I wrote a little BASIC program to digest your data and it decided
that all your data is perfectly consistent with a constant SWR on
a Z0=~40 ohm coax between the 50 ohm SWR meter and the 16.67 ohm
load. What is the Z0 of your "RG-58 type hardline"?

Hi Cecil,

50 Ohm. The BVT has been calibrated long before this application (8
years ago the first time) without surprises. Methods are described in
Walt's Book, Reflections. I suggest you use his software rather than
roll your own. I would also suggest you consider his methods as well.
Point in fact, I followed his advice to measure at odd 8th wave
intervals if I recall his instructions correctly. If not, it was "by
the book." I also performed the calibrations at the remaining
cardinal points. Tedious perhaps, but having done it through maybe
three or four times without outliers, I don't expect there is any need
to visit that again.

73's
Richard Clark, KB7QHC