Why use – Fosphor, a GNU Radio real-time spectrum analyzer?

Why use - Fosphor, a GNU Radio real-time spectrum analyzer?
Lately I have been experimenting with Software Defined Radio, SDR, which is a software-based radio signal processing system. I find this field intriguing. I can capture all kinds of signals in the air and get a better understanding of how technologies and gadgets around me operate. During my exploration of SDR I discovered one tool ...