David Hall

David
Hall
Senior Product Marketing Manager,
National Instruments

David A. Hall is a senior product marketing manager at National Instruments, where he is responsible for RF and wireless test hardware and software products. His job functions include educating customers on RF test techniques, product management, and developing product demos. His areas of expertise include instrumentation architecture, digital signal processing, and test techniques for cellular and wireless connectivity devices. He holds a bachelor of science degree with honors in computer engineering from Penn State University.

Articles
Zero Span Made Simple
The increasing instantaneous bandwidths of modern signal analyzers combined with the use of more advanced triggering modes has increased the usefulness of zero span measurements.
What To Expect With 5G 1
The desire to further increase data rates in cellular networks is one of the biggest motivations behind today’s ongoing 5G research. Deployment of 5G networks will likely occur well into the future (think 2020), but engineers are researching 5G technologies today.
All About Decibels 5
Although some might find the dB (0.1 Bel) to be confusing, it fundamentally is nothing more than a description of a ratio. Moreover, it is a convenient term that allows us to describe extremely large ratios with simple language using a logarithmic scale.
Understanding IF Bandwidth In RF Signal Analyzers
A basic understanding of the architecture of the modern RF signal analyzer empowers you to optimize its settings for a given measurement.
Understanding Intermodulation Distortion Measurements 1
Intermodulation distortion is an important metric of linearity for a wide range of RF and microwave components. Fundamentally, it describes the ratio (in dB) between the power of fundamental tones and third-order distortion products.
Understanding Your Signal Analyzer’s “Dynamic Range”
David Hall from National Instruments discusses RF Signal Analyzer "Dynamic Range" with the Electronic Design community.
Understanding Signal Analyzer Architectures
The three-stage superheterodye vector signal analyzer uses a reasonably straightforward architecture to cleanly downconvert signals from RF to IF. Understanding these architectures will help you to understand how to optimize your VSA for making challenging measurements such as intermodulation distortion.
VNAs: The Myth, The Mystery, The Electromagnetics
VNAs are unique stimulus-response instruments that can make extremely accurate RF power and phase measurements by accounting for various sources of systematic error, the largest of which is electromagnetic reflections.
What’s Inside Your RF Signal Analyzer?
David Hall outlines the basic circuits in an RF signal analyzer and discusses their operation and characteristics.
Instrumentation’s Role Grows In New “Embedded” Applications
The transition from primarily analog to primarily digital architectures has made many “problems” solvable with an RF signal analyzer. And with the reduction in size and new form factors such as PXI, these RF instruments are portable enough to be practical in field applications.
Instrumentation Improves Microwave System Simulation
National Instruments' David Hall shows you how to augment microwave spectrum analysis with PC-based test equipment, model extraction, and hardware-in-the-loop (HIL) simulations to improve your wireless design process.
Modulation, Symbols, And Bits: Building Your Wireless Vocabulary

Have you ever heard terms like modulation scheme, OFDM, or symbol rate and scratched your head? As new wireless standards emerge, we get excited about the higher data rates they afford. Yet most people, even engineers, who get excited about these new technologies don’t truly understand why the new generation is better than the last.

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