Coaxial cables are essential transmission lines in many RF/microwave applications. Coaxial cables are usually reliable, but sometimes coaxial cables can develop unseen faults that may be anywhere in their length. Finding those faults can often be challenging, typically requiring the use of time-domain reflectometry (TDR) which operates much like a radar system. Analysis of the reflected →
What is impedance? Impedance is very technical measurement that is hard to explain without equations and some scientific jargon. When you want to understand impedance, first think about electrical resistance (represented by R), measured in Ohms. In basic battery circuit battery generates a voltage which tries to force a current around the circuit connected between →
http://blogs.scientificamerican.com/illusion-chasers/2015/02/27/thatdress/ Posted from WordPress for Android →
Here is something to think about this weekend: I thought that not very much new winds comes on HiFi field. But now I came by an interesting idea: current driven speakers instead of traditional voltage driven. EDN magazine has a nice two article series on this: Loudspeaker operation: The superiority of current drive over voltage →
It seems that almost every big IT company needs to have their own programming language nowadays. It seems that every few months someone announces a new fad language, despite most of them them rarely bringing anything new to the table, or the new things they do bring not being significant enough to warrant switching from →
I needed to interface PC to some RS-485 test circuits, so I decided to try this cheap USB to RS485 Adapter – Black + Green adapter for that. I selected this specifically because of the cheap price (it is considerably cheaper than anything else I have seen for the same purpose). There should not be →
Some time ago I wanted an easy way to power logic circuits on breadboard (both 5V and 3.3v circuit as needed). The product 121305 3.3V / 5V Power Module for Breadboard – Deep Blue seemed to fit the needs pretty well at few dollars (around $3.5). It takes 6.5~12V DC input voltage and outputs regulated →
ePanorama – Software and tools section The Hardware Book v1.3 The Hardware Book contains miscellaneous technical information about computers and other electronic devices. Electronics Assistant Electronics Assistant is a small program designed to perform basic electronics-related calculations. It includes a resistor colour code calculator, resistor, capacitor and potential divider calculators and more. Resistor Calculator This →
The <canvas> element is a part of the HTML5 Standards specification and allows for dynamic scriptable rendering of 2D graphics. Canvas Pad demo allows you to play with the Canvas element! Update the provided example source code in your browser and press the ‘Ctrl+Enter’ key to update the Canvas real-time! The demo page is made →
Windows Internet Explorer 9 Test Drive page intended to give Web developers an early look at the Web platform technology coming in the next release of Internet Explorer. The page shows developers the progress in IE and give ideas to start planning if and how they want to support new HTML5 capabilities in the future. →