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Application Notes
The PathWave 89600 VSA is a signal processing toolkit that spans applications in emerging communications standards, aerospace defense, cellular, wireless and the Internet of Things. In some situations, an engineer may want to directly use the VSA software to analyze IQ data from their custom hardware or software. While the VSA offers hardware connectivity options with over 300 Keysight model numbers and filebased record and playback approaches, the direct data connectivity enables a more seamless approach.
Using the new “Direct Data Connectivity” option, users can now apply Keysight’s sophisticated measurement IP, interactive visualization, and automation tools to a richer set of data sources, including
• Data from the inside of your signal processing chain, such as the baseband IQ from your own receiver (rather than a transmitter)
• Data from a preferred HW acquisition source, including 3rd party or custom measurement solutions, which may also be performing a variety of other functions
• Data from software streams, simulated environments, deeper offline recording files, and multi-channel data that was captured manually or sequentially
In this application note, we will illustrate how to use the VSA .NET API (UserInput classes) to programmatically push RF time domain IQ data to the VSA from your own application.
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