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Old April 12th 04, 05:13 AM
Jerry Martes
 
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"JGBOYLES" wrote in message
...
Hi Jerry, I need to apologize to you. I realize now that your 0.057
-j1.14 figure is a value *normalized* to 300 ohms. 17-j343 is indeed
0.057-j1.14 when normalized to 300 ohms. Sorry about the

misunderstanding.

Hi Jerry and Cecil, When I did my plots it was with a 50 ohm chart. I

must
confess I use a Smith Chart program that lets you plot any impedance on

the
normalized 50 ohm chart, with correct results. The program prompts when

using
Lines, Impedance=? Having been spoiled by the computer, I never really
considered plotting transmission line Impedances on a Smith Chart that

were
different from the normalized Impedance.
This is a neat little free demo program I use. Maybe I need to get back

to
basics.
73 Gary N4AST


Gary

Theres a very good article on use of Smith Chart for impedance matching in
the July 1966 isue of Electronic Design. I like it because I wrote it.
Other than that, it is of little value or interest.

Jerry