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From: "Edward Rawde" <invalid@invalid.invalid>
Newsgroups: sci.electronics.design
Subject: Re: 50 ohm on FR4
Date: Sun, 2 Feb 2025 12:00:24 -0500
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"Cursitor Doom" <cd@notformail.com> wrote in message news:pssupj9omf6d3ao3jpilfjmhkommdf0m6e@4ax.com...
> Grok reckons to make a 50 ohm tx line on FR4 I would need  a Trace
> Width of approximately 2.73 mm and a Trace Spacing of at least 2.73
> mm. Does that sound about right?

It doesn't seem to match anything I can get from the site below with 2oz copper and er=4
Does Grok know the difference between stripline and microstrip?

https://www.elektroda.com/calculators/pcb-impedance-calculator-microstrip