62 U9361C/F/G/M RCal Measurement Guide
Making Measurements
Using RCal Directly from the 89600 VSA
11. Connect the signal generator RF output to the signal analyzer RF input
and note the corrected value of the signal.
The peak power level is now -10.006 dBm.
12. From the VSA main menu, select Input Correct. Notice that RF Calibration
is applied automatically once the calibration is completed. Refer to the
VSA Help for more information on this dialog box.
Leveraging the RCal with the 89600 VSA enables you to calibrate the whole
receiver system at the DUT reference plane, as shown below. In this example
system, we have a receiver test fixture, downconverter, and Keysight UXR
oscilloscope, each with their respective losses as a function of frequency.
Without receiver calibration, elements like the receiver test fixture and
down-converter will introduce both amplitude and phase errors, leading to
significant degradation in measurement system performance. Especially in the
context of wideband and millimeter wave systems, this lack of calibration can
render the system virtually ineffective.
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