Keysight Technologies N5261A User's And Service Manual page 52

Installation & System Operation
6. Measure the Dynamic Range of each Millimeter-wave module.
Figure 1-31 Dynamic Range Trace Example
46
a. Measure S11 for a 1-Port system, or S12 and S21 for a 2-Port
system, or S12, S21, S34 and S43 for a 4-Port system.
b. Select [Avg] > IF Band width [10] > [Enter].
c. Set the power level to the maximum for each band.
d. For a 1-Port system connect a short to the test port. For a 2-Port or
4-Port system connect the module ports together to form thru
connections. Refer to
connections.
e. Normalize each trace. Select the trace and press [Memory] >
Normalize.
f. For a 1-Port system remove the TEST IF cable from the test set or
module. For a 2-Port or 4-Port system disconnect the module ports
and connect a load or short to all module ports.
g. Select [Scale] > Reference Level > [−30] > [Enter]. Set the reference
as needed to view each trace.
h. The S11, S12, S21, S34 or S43 traces show non-calibrated system
dynamic range. The dynamic range will vary depending on the
modules used, and the configuration of the system. Reference your
modules document for performance information. See
i. Select [Memory] > Data Math > Off and review the traces for noise
floor performance.
"Measure a Thru Connection" on page 44
Keysight N5261/62A User's & Service Guide
for
Figure 1-31.