Re: Fine Tuning Shifting

On 11/11/2024 6:25 PM, Frank Krygowski wrote:

On 11/11/2024 1:03 PM, cyclintom wrote:

On Thu Sep 12 07:57:23 2024 AMuzi  wrote:

On 9/11/2024 6:33 PM, Tom Kunich wrote:

On Wed, 11 Sep 2024 16:57:13 -0400, Zen Cycle wrote:
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On 9/11/2024 4:22 PM, cyclintom wrote:

On Sat Aug 17 07:20:44 2024 zen cycle  wrote:

On 8/16/2024 6:28 PM, cyclintom wrote:

On Fri Aug 16 13:51:44 2024 Zen Cycle  wrote:

On 8/15/2024 4:28 PM, cyclintom wrote:

On Thu Aug 15 14:58:46 2024 Zen Cycle  wrote:

On 8/15/2024 2:35 PM, cyclintom wrote:

On Thu Aug 15 13:41:38 2024 Zen Cycle  wrote:

On 8/15/2024 1:08 PM, cyclintom wrote:

On Wed Aug 14 19:22:06 2024 zen cycle  wrote:

On 8/14/2024 3:35 PM, cyclintom wrote:

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Flunky just talks ahbout crap that he doesn't know about.
Notice how he could not answer how you measure the length of
a wire electronically? That's because he personally doesn't
know how to use an oscilloscope. Which comes as no

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Or, It could be because Jeff answered it as well as I could so
I didn't feel it was worth commenting, but since you insist,
here's how you test cable length with _out_ using dedicated
TDR equipment:
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- Connect a pulse generator, an oscilloscope, and the cable
under test together with a T connector (Typically BNC, but
adaptors may be required depending on the equipment.
- set up a pulse generator to single pulse, starting with a 1
nS width,
5 V P-P.
- Set up the scope to trigger on the single pulse from the
generator, with the pulse from the generator being displayed
at the extreme left of the display.
- Adjust the time base of the oscilloscope until the reflected
pulse appears on the right side of the display while manually
initiating the pulse on the generator.*
- Longer cable lengths may make the returned pulse not quite
discernible. When the trigger pulse is no longer visible,
increase the pulse width until it is visible, then begin
adjusting the time base again until the reflected pules is
visible (It may also be necessary to increase the pulse
amplitude).
- Once the reflected pulse is visible, measure the distance
between the trigger pulse and the reflected pulse on the scope
as time delay (Hence the term Time Domain Reflectometry).
- PLug this delay into the propagation delay value for the
cable under test, and do the math.
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* setting up the generator to a repetitive pulse could prove
problematic in that the trigger pulse period my be shorter
than the propagation delay of the cable under test giving a
confusing display. A competent technician could manage it, but
given the bizarre and completely non- nonsensical method you
described, it's well beyond your comprehension.

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I particularly liked the part about "BNC" because as we all
know the connector type is important

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It can be, depending on the application. When would you need an
N-type? or an F-type? Be specific.
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Because you don't know how to use an oscilloscope you can
pretend that anyone wouldn't use repetitive pulses

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Pay attention sparky, I didn't write anyone "wouldn't use
repetitive pulses". I wrote "a repetitive pulse could prove
problematic
       >> in that the trigger pulse period my be shorter than the
       >> propagation delay of the cable under test". In a manual
       >> set-up they wouldn't
unless they already had an idea of how long the cable under test
was. A repetitive pulse isn't require in any case. Is this why
you were never able to hold a job for more than a year?
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or that the actual pulse with (1 ns?) is important.

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I didn't say it was. I selected 1 nS as a matter of convenience.
For extremely long cables a 1 uS width is more advisable. The
important point is to have the pulse narrow enough such that the
reflection isn't obscured by the high level of the pulse.
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It is no surprise that you never got a real job.

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Says the guy who never had a job that lasted more than a year.
Meanwhile my resume includes ten years at HP/ Agilent, ten years
at Schneider Electric, and ten years at my current position.
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Still wanna play, sparky?
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-- Add xx to reply
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At least you know that "sparky" is a compliment to a real
engineer.

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no, it isn't, it's the name I give to a dog. In the 40 years I've
been in this industry I've never heard an engineer referred to as
'sparky' except for a newbie hire who mis-wired a power supply and
and blew up a 22000 uF 50V capacitor. It wasn't intended as a
compliment.
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Diablo Research followed me around buying up all of the companies
I developed products for until they got so rich they hired me
full time.

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Cool story bro. too bad it's bullshit.
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That you think that R&D shyould be a permanent job at a single
company shows how little you know about engineering.

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And where did I ever write that? I wrote that moving jobs every
year is a big red flag to an employer. Besides that, you're the
one that wrote "NO ONE EVER LEAVES HEWLETT- PACKARD!!!!!!".
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If none of the engineers at HP ever left, I guess that means HP
wasn't really any good at anything, right sparky? Gawd you're an
idiot.
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If you had a single thought in your head it would get lost in
that vast void.

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Still waiting on the PWM cable testing reference, and here's a
little tidbit for you:
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Remember when you said TDR isn't used for fiber optic testing, and
that 'light lines' is a commonly used term for fiber optic telecom
cables? This website discusses Optical TDR techniques, and at no
point uses the term "light lines" or PWM.
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https://www.flukenetworks.com/expertise/learn- about/otdr
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oh, and still waiting for that call from your lawyer for your
libel suit, you drunk-ass bitch.
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-- Add xx to reply
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More proof that you're not an engineer.

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No one I've ever worked with in my 40+ years in this industry has
ever been called 'sparky' except for the aforementioned intern. Your
inane claim is about a valid as claiming I'm not an engineer because
I don't call fiber optics light lines.
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      It was also used to refer to Radio operators and Liebermann
      could
verify that if he wasn't more interested in protecting your
intelgrity from your own comments.
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IF you were called sparky by anyone other than me, it was equivalent
to some calling someone who just wrecked their car 'crash', or
someone who just broke their leg 'skip'. It's not a term of
endearment.
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-- Add xx to reply
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You must feel really bad comapring my net worth to yourself.

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No, I actually feel pretty good about it.
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All you do is bitch and complain.

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HAHAHAHAHAHAAHHH!!!!!!! yeah, _I'm_ the one that does nothing but
bitch and complain. HAHAHA!!!!
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You never worked at any real electronics work

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Funny, my day-to-day activities (indeed my entire career) tell a very
different story.
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and cry that you don't know terminology so it CAN'T be true.

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I don't dry about such things tommy. I do what any responsible
professional does: I do some research into the issue, then form an
opinion. You might want to try the former some time, it'll be a lot
less embarrassing for you.
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What a joke.

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the story of your life.
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Just got my monthly investment statement and despite the Kamala krash,
I'm still worth more than a million. What was it you said that you were
worth again?

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3.68M according to my last statements

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Good, so now you can afford the latest Buick sports car

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Buick doesn't make sports cars, only four station wagons
(the new high center of gravity style)
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https://www.buick.com/explore/future-vehicles
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The top photo is labeled "Concept vehicle shown.  Not
available for sale"
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-- Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971

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Concept vehicles become production vehicles simply by having public interest. But Flunky is antiAmerican  and he is in big shit now with the election of Trump and Bidemn attempting to quicvkly transfer nearly a trillion dollars in weaponry to the Ukraine without the approval of Congress.

 Let's see: September 12 to November 11 for Tom to come up with that nonsense. Almost two months!
 Does anyone have an idea what might be going on with him?
 

Back to 'concept cars', which don't actually exist beyond a single mockup, I'm still waiting for:
https://oldconceptcars.com/1930-2004/chevrolet-corvair-testudo-1963/
--
Andrew Muzi
am@yellowjersey.org
Open every day since 1 April, 1971