Keysight M8195A User Manual page 64

2 M8195A User Interface
64
There are two basic operation modes for the definition of equally spaced or arbitrarily
distributed tones respectively. The selection between the two modes is made through
the "Tone Distribution" drop-down list. This control affects the contents of the "Basic
Multi-Tone Waveform Parameters" section of the user interface and the presence of the
"Notch Parameter" section, which only makes sense in case of equally spaced tones.
However, controls in the other control groups are valid and operative for both operating
modes. Equally spaced tones are defined on the basis of their common parameters such
as start and stop frequencies, and tone spacing or number of tones or both. Arbitrarily
distributed tones are defined through a table. In order to simplify the creation of
complex scenarios, the tones defined in the equally spaced mode are loaded into the
tone table every time the user switches to the arbitrary mode and the tone table is
empty. In this way, any number of tones may be easily defined in the equally spaced
mode, and then the resulting table may be edited for frequency, amplitude, or phase for
each individual tone. Tones may also be deleted or added.
This tab has the following controls:
Waveform Destination Section
 Generate I/Q Data
If checked, baseband (I/Q) signals will be generated. The resulting complex
signal will be a series of tones located at positive and/or negative frequencies.
As a consequence, negative values can be typed into any waveform frequency
edition field in this panel when this checkbox is checked.
 I/Q Toggle buttons
I/Q selection toggle buttons for each channel will be shown when the
Generate I/Q Data checkbox is checked. In-Phase (I) and Quadrature (Q)
components can be independently assigned to each channel.
 Channel Independent checkboxes allow the definition of Multi-Tone
waveforms for Channel 1, Channel 2, Channel 3 or Channel 4. One of the
boxes is always checked. When pressing the 'Send To Instrument' button, the
waveform is sent to all channels that are checked.
 Segment Number
Target segment for each channel can be defined independently. This field is
configurable only for channels sourced from 'extended' memory. The segment
range is 1 to 16777216. For channels sourced from 'Internal' memory, the
segment is always set to 1, and it displays the text 'Internal'.
Corrections Section
 File...
Open a correction file selection dialog box. Default file extensions match the
File Format selection. The name of the successfully loaded correction factors
file is shown in the field located at the left of this button. The accepted format
for correction files may be found in the

Channel Specific Frequency and Phase Response
This checkbox activates the application of corrections based on frequency-
domain calibration data stored in the target instrument in an internal non-
volatile memory. It improves flatness and linear phase distortion.

Standard Cable
This checkbox activates the application of correction factors based on a typical
high-quality, high-bandwidth 0.85m microwave cable (Huber+Suhner type
M8041-61616).
Keysight M8195A Revision 2 – Arbitrary Waveform Generator User's Guide
Correction File Format section.