pretty reasonable analyzer

The different screens are clear, and useful. Although you can drag the spectrum up an down to change the vertical offset of the scaling, you cant zoom in on a narrower frequency range to observe a narrowband signal, and if a peak momentarily shows and is captured by the hold function, you cant point to it to find out what that frequency is after the instantaneous peak frequency had disappeared. Improvements are needed, but this is a good start.

ls4wires about Analyzer