What's the Frequency, Kenneth?
Sherlock Ohms 4/22/2013 10 comments It was OK when a radio station ran a tad above frequency limits. But when other radio operators in the area used the station's frequency as a base, things could get crazy.
Screws Mess With Filter Design
Sherlock Ohms 4/18/2013 3 comments The filter had more rejection at the low end than at the high end since the equivalent capacitance coupling did not provide a transmission at high frequencies.
The Least-Obvious Signals Sometimes Bite You
Sherlock Ohms 4/15/2013 4 comments When is a digital circuit not a digital circuit? When somebody forgot that ultimately everything is an analog circuit, and things like L, R, and C combine in the most insidious ways to derail a design.
Car Radio Fires Up Check Engine Light
Sherlock Ohms 4/12/2013 19 comments Apparently the 2003 Saturn Vue has some interconnections between sensors that depend upon the integrity of the radio ground strap for proper operation of the engine and transmission control computers.
The promise of the Internet of Things (IoT) is that devices, gadgets, and appliances we use every day will be able to communicate with one another. This potential is not limited to household items or smartphones, but also things we find in our yard and garden, as evidenced by a recent challenge from the element14 design community.
If you didn't realize that PowerPoint presentations are inherently hilarious, you have to see Don McMillan take one apart. McMillan -- aka the Technically Funny Comic -- worked for 10 years as an engineer before he switched to stand-up comedy.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.