Keysight E8267D User Manual page 307

Peripheral Devices
N5102A Digital Signal Interface Module
7. Press the Data Negation softkey.
8. Press the Gain, Offset & Scaling softkey.
9. Make any required scaling, gain, offset, or rotation adjustments to properly
10.Press Return > Return to return to the first-level softkey menu.
Configuring the Clock Signal
1. Refer to
Figure 12-13 Clock Setup Menu Location
Keysight E8357D/67D & E8663D PSG User's Guide
From this softkey menu, select the bit order, swap I and Q, select the
polarity of the transmitted data, and access menus that provide data
negation, scaling, gain, offset, and IQ rotation adjustments.
Negation differs from changing the I and Q polarity. Applied to a sample,
negation changes the affected sample by expressing it in the two's
complement form, multiplying it by negative one, and converting the
sample back to the selected numeric format. This can be done for I
samples, Q samples, or both.
The choice to use negation is dependent on the device being tested and
how it needs to receive the data.
Use the softkeys in this menu for the following functions:
— reduce sample values for both I and Q using the Scaling softkey
— increase or decrease the sample values independently for I and Q
using the I Gain and Q Gain softkeys
— compensate for or add a DC offset using the I Offset and Q Offset
softkeys
— rotate the data on the IQ plane using the Rotation softkey
test the device.
Figure 12-13. Press the Clock Setup softkey.
Accesses the Clock Setup Menu
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