Receiver and Spectrum Analyzer: IDA 2

What is the difference between a spectrum analyzer and a receiver? How long must an event last in order detect it with either of these devices? These two are asked often, and it is important to understand the answers to these questions in order to use the IDA 2 correctly. This application note describes the difference between a receiver and a spectrum analyzer, the difference between their applications, and how the IDA 2 is used as a both a receiver and an analyzer.