User`s guide

Table Of Contents
Reference Graphs and Tables
16
Agilent E5505A User’s Guide 383
How to access special functions
Press the Special key and enter the special function number of your choice.
Access the special function key by pressing the Enter key. Press the [ON]
(ENTER) key to terminate data entries that do not require specific units (kHz,
mV, rad, for example)
Example:
[Special], [1], [2], [0], [ON] (ENTER).
Description of Special Functions 120 and 124
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. The preset condition is FM
Digitized.
Table 63 Operating characteristics for 8665A modes 2 and 3
Characteristic Synthesis Mode
Mode 2 Mode 3
RF Frequency Switching Time 200 ms 350 ms
FM Deviation at 1 GHz 1 MHz 100 kHz
Phase Noise (20 kHz offset at 1 GHz) -130 dBc -136 dBc
Figure 302 8665A special functions keys