Test/Measurement
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Acoustic Detection of Drones

I always perceived my dad to be a peaceful person, which isn’t to say he didn’t have his off days (which would involve someone else having a “bad hair day”) in his role in reconnaissance behind the German lines during WWII. I also don’t recall ever seeing dad angry. If it happened that my mother vexed him (I know, what are the odds?), the worst that would ensue is that he would clamp his teeth down on his pipe and refrain from saying anything. When I was older, dad once confided to me that he had bitten through three pipestems during his marriage to my mom. … Read More → "Acoustic Detection of Drones"

Adventures with SiTime’s MEMS-based Super-TXCOs – Super Accurate Clocks for the Future – Part 1

Clocks are integral to most electronic systems. Timing and communications systems need extremely accurate clocks. When I started working with electronics, in the heyday of Citizen’s Band (CB) radio, quartz crystals were on sale everywhere, even at Radio Shack. The CB crystals congregated around 27 and 28 MHz, but many more frequencies were on offer. As I started designing circuits as an engineer, I used many specific crystal … Read More → "Adventures with SiTime’s MEMS-based Super-TXCOs – Super Accurate Clocks for the Future – Part 1"

The Case of One Dead Digital Multimeter

There’s no more fundamental piece of test gear for electrical engineers than a multimeter. I own a bunch, starting with my Micronta 22-150 analog multimeter with a mirrored scale, which I bought from Radio Shack in my high school days back in the 1970s. Miraculously, that meter still works. I’ve got at least five Cen-Tech 3½-digit Digital Multimeters that Harbor Freight used to give away … Read More → "The Case of One Dead Digital Multimeter"

National Instruments to Apple Mac: Buh-Bye

National Instruments (NI) recently released a new version of its LabView test automation programming environment for the latest Apple Macintosh computers based on the Arm-based Apple M1 CPU/GPU SoC. At the same time, NI let its customers know that this release would be the last one for Apple Macintosh computers, sending a shock through some portion of the company’s customer base. Here’s the text … Read More → "National Instruments to Apple Mac: Buh-Bye"

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