The NanoVNA made network analyzers cheap enough for almost everyone. Now you can get a $49 spectrum analyzer to go with it. Is it worth it? Watch [IMSAI Guy]’s video after the break for his opinion.

For the hardware side of the spectrum analyzer, [Ariel] equipped an Arduino ... samples the analog signals from the accelerometer in a free running loop at about 5000 Hz. It streams the digitized ...

For example, whereas an oscilloscope would show total noise level, a spectrum analyzer would show the noise as related to frequency. Available in both analog and digital models, digital analyzers ...

Yokogawa Test & Measurement's AQ6377E optical spectrum analyzer offers fast, precision mid-wave infrared (MWIR) measurements ...