There are many different types of spectrum analyzers including benchtop models, portable models, handheld units, and Software Defined Radio (SDR) units. While there are many different ways of comparing these products, most choose to focus primarily on the traditional spectrum analyzer specifications such as:
- Frequency Range
- SFDR – Spurious Free Dynamic Range
- DANL – Displayed Average Noise Level
- Phase Noise
- Sweep Speed
- Frequency Resolution
However, when using a spectrum analyzer to search for unknown signals which may pose a threat, mobility is another very important factor to consider. When doing a security survey, it is vital to be able to quickly pick up the spectrum analyzer and walk around an environment to compare RF signal strength in different locations.