scope?
I was given this little thing a while back, haven't done anything with it yet...
There's this board, no particular identifying marks on just what it is. The oddest BNC I've ever seen on top, some
By
Roy J. Tellason, Sr.
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#99600
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Re: Latching Relay Drivers
Sound's like a great way to go!.
You may find it a easier go to start with Microchips evaluation kit for the AVR-1 product...it will greatly speed your development time by relieving you of tedious
By
Terry
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#99599
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Re: Latching Relay Drivers
After much research looking at "single momentary input toggle output" latches based on the 74hc74, inverters, 2In Nand, mosfet / bjt, and variations of other flip flops, I have decided using gates for
By
SheldonD
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#99598
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Re: testing for mixer saturation without datasheet purely lab reading
Hello, I am using this mixer as a phase detector in a PLL? used? in down converting.
I got a matlab plot of the Error voltage as a function of frequency(A and B pint in the diagram).
from this error
By
john23
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#99597
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Re: A short discussion and a couple of USB questions
In my situation, just about the time I was ready to order an analyzer software package the company came out with V2.0 drivers which solved the problem.
By
wn4isx <wn4isx@...>
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#99596
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Re: A short discussion and a couple of USB questions
Have you looked at that little analyzer that I mentioned a while back? Check out sigrok.org, the thing cost me under $20 and has a *LOT* of different protocols that the software (pulseview)
By
Roy J. Tellason, Sr.
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#99594
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Re: A short discussion and a couple of USB questions
Yes. It does. That photo tells me that what I am trying to work with is a HighSpeed cable, and
that what I need is a simple standard cable.
That photo is exactly the same as the cable I am working
By
Kenneth G. Gordon
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#99593
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Re: A short discussion and a couple of USB questions
Ah USB 3 has the same 4 wires as USB 1 & 2 plus 4 extra ie 2 twisted pairs, sort of thing used for differential and screened too ie very high speed.
By
Mike
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#99592
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A short discussion and a couple of USB questions
Ken:
Does this help?
Look at the fifth image
<https://www.amazon.com/URWOOW-SuperSpeed-Extension-Convertor-Extender/dp/B083TGBMR4>
in the description.
[image: image.png]
--
*G.T.*
--
*G.T.*
By
Gooey
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#99591
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Re: A short discussion and a couple of USB questions
I meant to add, are you sure you have genuine USB chips? There are a lot and I mean many counterfeits on the market that almost work right. Look up USB FTDI fake or counterfeit.chips. The fakes can
By
wn4isx <wn4isx@...>
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#99590
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Re: A short discussion and a couple of USB questions
My primary radio and lab PC are HP Elitebooks and each needed to communicate with USB devices, SDR radio, USB oscilloscope, a USB capable DVM. The PCs are on a narrow shelf with no room for regular
By
wn4isx <wn4isx@...>
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#99589
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A short discussion and a couple of USB questions
Hello:
I am Ken Gordon, am now 82 years old, and have been involved in electronics since I was 13
years old in 1956.
So, recently I have been involved in "Elmer-ing" a good friend who is not
By
Kenneth G. Gordon
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#99588
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Re: testing for mixer saturation without datasheet purely lab reading
Can't answer the first question but as for the second.
Monitor the output with a spectrum analyzer, take care to protect input!
Increase drive level until more drive doesn't cause a corresponding
By
wn4isx <wn4isx@...>
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#99587
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testing for mixer saturation without datasheet purely lab reading
Hello,I have the following old mixer called TXF-18075 which I want to test for saturation and power levels in down converting mode.
I dont have any datasheet only this brief table I found.Unlike
By
john23
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#99586
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Edited
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Re: "Higher Superstition: The Academic Left and Its Quarrels with Science" (book title)
Consider
https://intellectualtakeout.org/2024/04/new-npr-ceo-there-are-many-truths/
" A pair of Maher¡¯s speeches have been making the rounds on social media, and not without good reason. In her
By
wn4isx <wn4isx@...>
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#99585
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Re: "Higher Superstition: The Academic Left and Its Quarrels with Science" (book title)
Many years ago when I was operating a service business I ventured into accepting a government contract. Once that was over and done with, I declined to renew it. No problem with the work itself,
By
Roy J. Tellason, Sr.
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#99584
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Re: "Higher Superstition: The Academic Left and Its Quarrels with Science" (book title)
Yeah there is. Be there for her, and talk about this nonsense and that it IS nonsense.
I have a nephew who's plenty bright, picks up on all sorts of stuff. But he _is_ in the public school
By
Roy J. Tellason, Sr.
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#99583
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Re: "Higher Superstition: The Academic Left and Its Quarrels with Science" (book title)
When the state or large elements of any society start imposing ideological dogma on science and math, things go sideways.
Look up "illegal numbers" on Wiki for a glance into the upside down world of
By
wn4isx <wn4isx@...>
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#99582
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Re: "Higher Superstition: The Academic Left and Its Quarrels with Science" (book title)
Guess nearly all of the western countries suffer from the same.
No wonder east Asia, especially China, are so far ahead of us¡
Nuno T.
Sent: 24 December 2024 08:37
To:
By
Nuno T.
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#99581
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Re: "Higher Superstition: The Academic Left and Its Quarrels with Science" (book title)
I'm from South Africa. If you change "UK" to "RSA" you would be describing us 100%. In my opinion, when the government and church/religion get involved in science you have shit on your hands - excuse
By
Abes
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#99580
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