Keysight M8190A - Page 167

Low Phase Noise Operation 7
M8190A User’s Guide 167
Running in low phase
noise mode
When the instrument is configured to run in the low phase noise mode, the clock panel
of the Soft Front Panel is changed to show that the sample clock for both channel 1 and
channel 2 is provided from the Low Phase Noise Clock Input, as shown in the figure
below.
 Channel Coupling
Configuring the instrument for low phase noise mode forces the channels to
operate in coupled mode.
 Reduced Noise Floor
Configuring the instrument for low phase noise mode forces the channels to
operate with the Reduced Noise Floor feature. The fine delay feature is
disabled.
 Sample Frequency
The frequency of the external low phase noise clock must be set in the
External Sample Frequency box on the clock panel.
 Instrument features
All other features of the instrument function the same as for standard
operation.
Figure 7-4: Running in low phase noise mode