User`s guide

Table Of Contents
Reference Graphs and Tables
16
Agilent E5505A User’s Guide 379
Description of special function 120
120: FM synthesis
This special function allows you to have the instrument synthesize the FM
signal in a digitized or linear manner. Digitized FM is best for signal-tone
modulation and provides very accurate center frequency at low deviation
rates. Linear FM is best for multi-tone modulation and provides a more
constant group delay than the Digitized FM.