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.
Chip Suppliers Target Vehicle Complexity
Electronics News 4/2/2013 21 comments Chip makers are hoping a new breed of microcontrollers will begin laying the foundation for a solution to one of the auto industry’s most vexing design problems -- electronic complexity.
My Opinion on Testing Without ATS
Blog 4/2/2013 2 comments Automated test software, or ATS, is nothing new. But as systems grow in complexity, the need for automated testing, and likewise automated testing software, grows correspondingly.
Parallax Inc. is known for developing the Basic Stamp microcontroller development board and educational accessory kits. In addition to developing a user-friendly educational platform to learn about 8-bit microcontrollers and software programming, it created a multicore 32-bit chip called the Propeller.
Researchers working with additive manufacturing have said multimaterial techniques will allow industry “to fabricate materials with combinations of density, strength, and thermal expansion that do not exist [yet].”
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