1. I will try the command you mentioned. Can I save the data to a USB drive? 2. Did you mean "it cannot be changed"? That's bad for me (I remember having used "SWE POIN" command in fieldfox 9912A to change the sweep points) . Is there a way to scan huge chunks, say 100MHz and get the amplitude values say every 50KHz? In fieldfox, you could set the span to 100MHz and sweep points to 2001 for this.