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benz
  Demystifying technology, and marking five years of The RF Test Blog For several years, I co-coached two middle school robotics teams. It was a great experience, and I learned at least as much as I taught—though generally about different subjects! Some of the kids gravitated toward the robot mechanisms, while others found a natural focus on the… (Show more)
benz
  Fortunately, we can make things better—for your signal analyzer   Note from Ben Zarlingo: This guest post comes to us from Bill Scharf, a Keysight engineer with long experience in microwave signal analysis.   If you use even a gently aged spectrum analyzer, you may sometimes wonder why its amplitude accuracy above about 4 GHz is slightly worse… (Show more)
benz
  Adapting to future circumstances instead of expecting to anticipate them  There’s nothing inherently wrong with trying to predict the future, whether that of technology or any other area. It’s easy to understand why “trying” is an attractive pastime, but expecting consistent success is where engineers and others may run into trouble. Instead, I… (Show more)
benz
  In praise of the humble power sensor It’s always nice to get a reality check from a fellow RF engineer, and Keysight’s Eric Breakenridge recently delivered one in the form of an explanation of the capabilities of modern RF power sensors. I guess I’ve become a bit of a measurement snob, having spent many years working with vector signal analyzers… (Show more)
benz
  Understand, anticipate, and respect your power limitations Are IoT and other smart/connected devices the biggest wireless opportunity right now, or the biggest source of hype? I suppose they can be both at the same time, and it’s clear that lots of devices will be designed and sold before we know the true magnitude of this wireless segment. A… (Show more)
benz
  Are you a good spectral citizen?   Note from Ben Zarlingo: This is the third in our series of guest posts by Nick Ben, a Keysight engineer. In this post he provides an overview of adjacent channel power, a measure of how well your products play with others.   In the previous edition of The Four Ws, I discussed the fundamentals of noise figure.… (Show more)
benz
  Spectrum crowding is bad, but I think interference is worse He’s guilty of some degree of hyperbole, but Lou Frenzel highlights a fundamental issue in his recent column Spectrum Apocalypse: The Coming Death of Wireless. We’re all aware of the limited nature of our shared spectrum resource, and Lou extrapolates to a future in which crowding… (Show more)
benz
  While some are timeless, others evolve This post will be brief, partly a consequence of the wildfires that have affected the Santa Rosa headquarters of Keysight and modified all our schedules, at least a little. Without getting too metaphysical, the fires and their aftermath are a powerful reminder that things are always changing. This is… (Show more)
benz
  A new RF tool leveraged two evolving technologies These days, vector signal analyzers (VSAs) are in broad use, especially in wireless, aerospace, and defense applications. They’re essential for designing the complex modulated and time-varying signals that have become ubiquitous. However, VSAs haven’t been around nearly as long as spectrum or… (Show more)
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