Agilent Technologies n5181a - RF Output Problems

Agilent N5181A/82A MXG Signal Generators SCPI Command Reference 127
Analog Modulation Commands
Phase Modulation Subsystem–Option UNT ([:SOURce])
Phase Modulation Subsystem–Option UNT ([:SOURce])
:PM:BANDwidth|BWIDth
Supported All Models with Option UNT
[:SOURce]:PM:BANDwidth|BWIDth NORMal|HIGH
[:SOURce]:PM:BANDwidth|BWIDth?
This command toggles between normal phase modulation and high bandwidth phase modulation
mode.
*RST NORM
Key Entry FM ΦM Normal High BW
:PM:EXTernal:COUPling
Supported All Models with Option UNT
[:SOURce]:PM:EXTernal:COUPling AC|DC
[:SOURce]:PM:EXTernal:COUPling?
This command sets the coupling for the phase modulation source through the selected external input
connector.
Use this command with the “:DCFM” on page 60 to remove the effects of DC and optimize the DCFM
calibration.
AC This choice will only pass ac signal components.
DC This choice will pass both ac and dc signal components.
*RST DC
Key Entry Ext Coupling DC AC
Remarks This command does not change the currently active source or switch the current
modulation on or off. The modulating signal may be the sum of several signals,
either internal or external sources.
:PM:INTernal:FREQuency
Supported All Models with Option UNT
[:SOURce]:PM:INTernal:FREQuency <value><unit>|UP|DOWN
[:SOURce]:PM:INTernal:FREQuency?
This command sets the internal modulation frequency rate for the following applications:
• the start frequency for a swept- sine waveform
• the frequency rate for all other waveforms
*RST +4.00000000E+002
Range All Waveforms: 0.1 Hz–2 MHz (Wideband)All Waveforms: 0.1 Hz–1 MHz (narrowband)