bpcu

  EMI is quite the topic for any discussion, like consider this scenario, for example, you are discussing with your old-timey school friends (who actually does that?), and you tell to one of them about your cool project that you did for measuring signal integrity in a double Molex line by modeling it's EM parameters and slowly loaded your model with all the insanity of small RF and electrical coupling that can happen inside the system.   So, ranting aside, how do we understand EMI and what EMI can actually do your systems(intentional and unintentional ones) and the badass of the questions what is EMI and how does it happen?     So what is Electromagnetic Radiation? So by science/physics,  Electromagnetic Radiation means the waves refer to waves that are actually an Electromagnetic Field that is propagating through space. So electromagnetic wave is of very broad category this includes Visible Light, X-Rays, Gamma and the regular waves that are used for communication purposes as well

  So with our previous post, we got a very basic introduction to EM and EMI. This post will concentrate mostly on hands-on working into EMI and data recovery from EMI. For this I am using a simple arduino, and trying to recover some clock signals that occur in the arduino. Now with my arduino uno the clock is 16MHz, and one can observe a harmoic @ the multiples of fundamental frequencies, so a simple test with your probe at those frequencies we will have peaks in the FFT spectrum. The images are attached below. So the above attached images are the clock at the original frequency and it's odd and even harmonics, usually in MIL and AVI class equipments and instruments this type of harmonics is suppressed without mercy ruthlessly, like the same way conquistadors captures Mexico city ( https://www.pastmedicalhistory.co.uk/smallpox-and-the-conquest-of-mexico/ ), I mean it took them 3 years to erase the entire fucking race for the race and urge for gold and the possible fountain of youth

  Software Defined Radio (SDR) 101. What is an SDR? A Software-Defined Radio(SDR), is a radio environment that has all the front end devices(amplifiers, mixers, IQ units, CPLD, mod/demod equipment) in hardware and the operation of all these equipment including but not limited to signals processing is done using software.   How is it useful? Consider this scenario you are behind lines somewhere in a godforsaken land, and you need to have a very re-programmable front end and flexible signals processing software that can be swapped at will. Et Voila enter SDR, change the software, and modify the front end code you got real-time signals intelligence on the field.   Apart from that in the civvie world, it's used for the analysis of radio signals be it sub-1-GHz systems and analysis and security assessment of wireless systems.   Some SDR. RTL-SDR, cheap effective for understanding stuff regarding SDR and it's accompanying software which is mostly GnuRadio Companion(GRC), LabVIEW, or

So, as far as this blog goes this is not going to be one of those other blogs where profanity runs amok (though it can be, and it will be in some points here and there). The concept of signals and application of IQ data in communication system math in our area is rather a in-depth and detailed concept heavy area. Like IQ modulation has it's roots in complex numbers, and how actually these things play a role in defining digital modulation concepts and how constellation points are actually defined in IQ mode, and what does that mean as an equivalent in it's analog domain. But first things as they go, understanding what is an complex number is an essential part of this blog post an not-so brief introduction is given here. At this point I frankly don't know how I am split up these parts and publish as an blog post article, but I'll make a decision about it as I go through that bolg post. Now with the second part of this. The following article can be considered a the theror

Was occupied with some work. Now I am coming back, but the thing is I lost my bpcu.blogspot.com domain name, now I am going to run things under bpcu1.blogspot.com domain. I know no one reads this, but for the few people who read, this is your PSA. I'll also slowly be working on restoring all my old articles from wayabck.