15 | Keysight | N9038A MXE EMI Receiver Self-Guided Demonstration - Demo Guide
Step 3: Maximization
Before final measurement, it is important to maximize each signal. This step allows
you to find out the maximum amplitude of each suspect signal through frequency
adjustment, antenna height scan, azimuth rotation, and polarization change. Several
features on the MXE, such as signal zoom, marker zoom, global center frequency,
monitor spectrum, and Strip Chart, can be used for this purpose.
Demo 1: Tune signals by zooming in
In this demonstration, we view signal details by zooming in with {Signal Zoom} function.
The cross marker may not be well centered on the signal, so we can adjust the signal
frequency with meters and {Meters List (Replace)} function.
Step 3—Demo 1 Instructions for MXE Keystrokes
Select a signal from signal list and zoom in
Note that meters are coupled to the current
signal frequency, so the blue meters
frequency line follows the signal
Press {Signal Zoom} times until the signal is close-up
Adjust the frequency of the current signal and
replace the older one
[FREQ], {Frequency (Meters)}, using knob to adjust the meter frequency (blue line) to the center of the
signal
Zoom out to full span view [Meas Setup], {Signal List}
Press {Zoom Out} times until the spectrum is back to full span view
Figure 13. Zoomed-in spectrum
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