Spectrum Analyzers

A spectrum analyzer is used to measure and visualize signal strength across different frequencies. It helps in telecommunications, audio analysis, RF testing, and electromagnetic compatibility assessments.

There are two main types: analog and digital. Digital spectrum analyzers are more common today due to their accuracy and advanced features. They can be real-time, swept-tuned, or vector signal analyzers, depending on the application.

The frequency range you need depends on your application. For RF testing, a few GHz may be sufficient, while advanced applications like 5G or radar testing may require higher frequency ranges.

A real-time spectrum analyzer captures and processes signals in real time, ideal for fast-changing signals. A swept-tuned analyzer scans across frequencies sequentially, suitable for stable signals.

RBW determines the analyzer’s ability to separate closely spaced signals. A narrower RBW provides better frequency resolution but may slow down measurements. The right choice depends on the signal characteristics you need to analyze.

Dynamic range is the difference between the strongest and weakest signals the analyzer can detect. A higher dynamic range is beneficial for distinguishing weak signals in the presence of strong ones.

An external attenuator helps when analyzing strong signals to prevent distortion, while a preamplifier boosts weak signals for better detection. Whether you need them depends on your measurement environment.

Yes, many spectrum analyzers have advanced features to measure modulation characteristics, phase noise, and signal distortion, especially in telecommunications and RF applications.

A spectrum analyzer can measure RF signals, audio signals, electromagnetic interference (EMI), and digital communications signals, depending on its capabilities.