you can spend twenty thousand dollars on a used VNA. Around the time Ted’s project began, Rigol released their cheap spectrum analyzer, the DSA815. This thing only cost a thousand dollars.

The Sensory Bridge also has an “accessory port” that can be used for hardware extensions, such as a base for their LED “Mini Mast”, a long RGB array PCB strip. The unit is powered by a 5 V ...

The swept-tuned spectrum analyzer is commonly used by RF communication technicians, engineers, and amateurs. This type analyzer is a superheterodyne receiver with special circuits and characteristics ...