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From: Zen Cycle <funkmaster@hotmail.com>
Newsgroups: rec.bicycles.tech
Subject: Re: Ove Interest?
Date: Fri, 28 Feb 2025 13:24:33 -0500
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On 2/28/2025 12:24 PM, Jeff Liebermann wrote:
> On Fri, 28 Feb 2025 15:42:05 GMT, cyclintom <cyclintom@yahoo.com>
> wrote:
> 
>> But now the man who admitted he doesn't know shit about digital design is suddenly an expert at it.
> 
> TDR (time domain reflectometry) is mostly analog, not digital.  You
> might argue that it can be used to impedance match transmission lines
> and circuit traces on digital PCB's (printed circuit boards) or that
> the required fast rise time pulse generator can be done digitally.
> However, as long as the measurements are most commonly displayed on an
> analog oscilloscope, methinks that TDR should be considered (mostly)
> an analog technology.
> 
> Also, there's nothing to "design" with TDR.  It's a measurement
> technique performed using off the shelf test equipment.  Your claim
> that to understand TDR somehow requires a digital designer suggests
> that you haven't done any TDR measurements (with or without PWM) and
> know little about what is involved.  This might help:
> 
> <https://www.tek.com/en/documents/primer/tdr-test>
> "Time Domain Reflectometry (TDR) has traditionally been used for
> locating faults in cables."
> 
> I've mentioned this previously, but it's worth repeating.  The way I
> recognize expertise in any technical discipline is if the person
> claiming expertise knows the vocabulary, buzzwords, acronyms, inside
> jokes, and literature used by knowledgeable practitioners.  You have
> repeatedly incorrectly spelled and misused technical terms that anyone
> experienced in the field would be expected to know.

+1
Remember "time delay reflection"? lol

https://groups.google.com/g/rec.bicycles.tech/c/f_tByXh5jXo/m/9Y4EzuUJCAAJ

> 


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