Re: Francophones

On Wed, 25 Dec 2024 13:40:19 -0500, Ralph Mowery
<rmowery42@charter.net> wrote:

In article <8i6omj1vidqoch9421207205iajrb0h5ue@4ax.com>,
cd@notformail.com says...

will see what I mean.
 
I still maintain the principal determinants of the impedance are  as I
stated previously. The formulas for line impedance are shown on this
page and the aforementioned determinants are key.
 
https://www.everythingrf.com/rf-calculators/coaxial-cable-calculator
 
 
 

>
I could not get the calculator to come out for me.  Getting negative
numbers and about 10 times what they should be.

There are a lot of silly equations around, that people plug into apps.

Try a wide microstrip in some online calculators. Many use the
equation that's in the old Motorola ECL book, and a wide trace reports
a negative Z.