Expanded detail graphical display for spectrum analyzers

A graphical display for displaying spectrum analyzer data that represents detected signal levels for frequencies in an identified frequency spectrum span, said graphical display comprising:

• a signal level axis that represents a range of detected signal levels for the spectrum analyzer data;
• and
• a first frequency axis that represents the identified frequency spectrum span for the frequency spectrum analyzer data;
• wherein frequency ranges in the identified frequency spectrum span having a high concentration of detected RF energy are automatically graphically expanded and displayed on the first frequency axis of the graphical display while frequency ranges having a lower concentration of detected RF energy are simultaneously, automatically graphically condensed and displayed on the first frequency axis of the graphical display.