Link: IQ data for dummiesLink: Generating Complex Baseband and Analytic Bandpass Signals Link: I and Q Components in Communications Signals and Single SidebandIQ (In-phase and Quadrature) There are a lot of literature that explains the...
The 16.5 foot diameter Artemis heat shield (Image from NASA/Glenn Benson) I had visited NASA’s Kennedy Space Center (KSC) in Florida where I had the pleasure of touring the Thermal Protection System Facility (TPSF) Annex run by Jacobs Space Operation...
Brief Massage chair with modern mechanical technology to reproduce the traditional Chinese medicine meridian massage is an important daily health care equipment. The function of the massage chair is to integrate meridian massage of traditional Chinese...
I ordered some counterfeit STM8S003 recently as the parts dried up and the prices were getting higher. I didn't think much at the time as the seller had been around for a few years and had good reviews. Aliexpress dispute initially rejected my...
As an operating element of mechanical equipment, servo motors get widely used in the servo systems. Sometimes the heating of the operating servo motors may make us a wonder whether it is normal if we lack some professional knowledge. Actually, it...
A few weeks ago, my sister gave me the news that I was going to be an aunt, and not only would I be the event manager, but I would also be the godmother. After hearing such good news, I am on cloud nine, and countless ideas are coming to my mind to...
I have often been told about engineers who do not read, much less follow, directions when assembling an item. Regrettably, I am no exception to this observation. There have been numerous occasions when I have emptied the contents of a newly acquired...
Some Interesting Stuff:Blue Sea Systems has some inexpensive, 80-volt DC fuse products.Read for perspective on American Culture (Too Many Experts Protecting Interests, Not Looking For A Way To Make Solar Energy Affordable)Images of Conformal Building...
Briefly: 80-wire IDE cables are *great* for high-speed stuff... But the pinout is a bit more difficult than a straight-through 40-wire IDE cable, because the 80-wire cables have shielding (yay!) which is connected to specific pins designated as ground,...
Received my ham radio call in 1974 while in high school in Hialeah Florida. A friend got interested in computers so our group helped him build his Imsai 8080. What fun coding our first programs and playing catch the rabbit on the led display. My first...
I needed a 7.2V battery pack for an ongoing project. Too lazy to go and buy pre-made packs, I made my own. The cells are bog-standard Lithium-ion 18650s recovered from laptop battery packs. I cycled them twice with an Accucel charger to check the capacity....
Here are several gerenuk facts that'll make for an appealing read. Gerenuks Fact #1:Gerenuks are bigger than you may well fully understand.The average gerenuk height varies from 80 to 105cm. In inches, that is about 30 to 40 inches, give or take one...
Since i have a couple of computers and tablets I decided that i needed to find a way to share my most important files across all my devices. Instead of using a USB to sync them or having one of the PCs running as a server i found a more economic way....
Lithium-ion batteries, also known as Li-ion batteries, are rechargeable batteries commonly used in portable electronic devices such as smartphones, laptops, and tablets. They have become the preferred choice for many applications due to their high energy...
No I do not plan on doing any of these things at this time. This project is an escape for me where I can create something without the constraints that a business would have. I am free to work on this project whenever I want, free to not...