Does anyone know how to rig up a simple white noise generator? A coworker needs one to do a frequency response measurement and needs it from ~100 Hz up to 100 kHz. We can get to Radio Shack (or order ...

The behavior of analog circuits can often be characterized by sweeping their inputs with a signal going across a range of frequencies and then observing the output. These sweeps can be composed of ...

What kind of clever things could you do with a signal that had a period of 2 hours? Or 20? Any ideas? No seriously, tell us. Because [Joseph Eoff] has come up with a way to produce incredibly low ...

It happens so quickly you almost don’t believe it: Seth Robertson and Viet Tran ignite a fire, snap on their low-rumbling bass frequency generator and extinguish the flames in seconds. And even after ...

Upcoming game developers will seek the right tools to improve their craft. If you’re the amateur developer looking to create music, videos, and even sound effects for your new game, then you’ll ...

One of the advantages in being active on LinkedIn is the opportunity to meet many new friends and colleagues, not to mention learning about new and interesting products. In this case, one of my ...

White noise generators commonly are used for testing purposes such as setting the noise level in bit error rate (BER) measurements, providing broadband signals for ...

In his 1973 book Supernature, the scientist and adventurer Lyall Watson tells the story of a six-foot-long whistle. Part of an experiment in the 1960s, the enormous device was designed to explore the ...

In war, conflicts, and other military-to-military skirmishes, we need to detect high-velocity vehicles such as supersonic jet fighters. In the past, this has driven how we optimized the performance of ...

[Hans] wanted to see the frequency response of a bandpass filter but didn’t have a lot of test equipment. Using an RTL-SDR dongle, some software and a quickly made noise generator, he still managed to ...