HP 3048A Phase Noise - Display of the Measurement Curves

The software revision of our system includes a small application named GRAFPLUS. It is loaded before the 3048 main program, and it runs in the background, giving the ability to dump the screen contents of the controller at any time during the measurement process. The dump can be made to a printer or to a graphic file. The 3048 software offers the possibility of some data manipulations, but they are very limited compared to what can be done with today's computer graphic tools. By the way, we just use the GRAFPLUS utility to export the screen captures as PCX Bitmap graphic files, and then manipulate the curves using Photoshop.

One last tool, developed for a better curves comparisions, is shown below. It was developed in JavaScript language, and is compatible with every internet browser.