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Sampling Theorem
All you want and more I think? You can download it free. I think Analog dev has a text as well, but I didn't find it.. here is something close
https://www.dspguide.com/
https://www.analog.com/library/analogDialogue/archives/31-1/DSP.html...
block diagram symbols
I'm laying out various systems and sometimes use inproper symbols for items. Does anyone have a link to the standard block diagram symbols? Mostly RF oriented.
Thanks
Mapping spherical antenna patterns to 2D contour plots
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I'm fighting, trying to take 3D spherical antenna pattern data and plot it to a 2D contour plot. I can do the everyday spherical transformation map...
I'm fighting, trying to take 3D spherical antenna pattern data and plot it to a 2D contour plot. I can do the everyday spherical transformation map to a x-y plot, but the contours are funny and not lining up so like a tradition contour map.... I need the projection equations... Any references or...
AC, low frequency AC across the heart will cause a miss beat and kill you.. Across the heart meaning from one hand to the other.
DC continuously repeats itself! ;-)
Which car is efficient
The smaller wheel will have to spin more-the engine will have to run at a higher RPM for the same vehicular speed. The engine will wear more..
The smaller wheel will have more leverage and the engine will won't have to supply as much horse power to start the car moving...
RF test cable
Jayleung, thank you for the "helped" button pushes, I can't seem to be able to find that button when I want to push it for people. Can you tell me where it is located? Is it the donations button?
Thanks
Added after 3 hours 9 minutes:
found it. I didn't create the posts, so I...
RF test cable
Well, now your an engineer. A big part of it is hunting parts. It takes a lot of time...... Google cables. If you want semi rigid, then there are companies out there. The rep will help you get what you want. I bet if you called the local Agilent representative, they'd tell you...
RF test cable
Jayleung, I don't know if you're a student or a business or where you live, but as a student you could likely get a vendor/company to donate your cable requirements and get connectors. They may even possibly install them too. Installation can be a very strong learning experience...
complx number
When you think of complex numbers think of a polar graph with real on one axis and imaginary on the other. Amplitude/phase, frequency if you imagine cycles/sec- a cycle is 360 degrees. Use a sine to vary imaginary axis and cosine to vary real axis amplitudes, you get a spinning...
Hi,
Any thoughts on the book "Math refresher for scientists and engineers, 3rd addition"?
Anyone have a better recommendation besides going back to school?!
Thanks!
Several people to answer here...
If you have a vertical electrical vector AT the surface of a perfect electrical conductor (PEC) the vertical vector is mirrored by the currents in phase and it radiates like a dipole, if the electrical vector is horizontal AT the surface, it is mirrored out of...
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