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Spatial Scan
A Spatial Scan measures the magnetic field of radiated electromagnetic emissions from the DUT at a
single frequency as a function of position.
Add Spatial Scan node to Project node (please refer to
page 31
). Node settings window automatically
opens. Spatial Scan inherits the setting parameters that were selected in the settings of the Project node
(please refer to
page 37
). You can override any of the inherited setting parameters by modifying the tabs
in the Spatial Scan settings window. The tabs in the Spatial Scan Settings window are covered in the
following pages.
Spatial Scan Tab
1. Enter
Center Frequency
manually.
2. RBW (Resolution Bandwidth):
It is set by default at 122 kHz and can be reduced to the lowest level
allowed by the spectrum analyzer. Decreasing the bandwidth will increase the sensitivity; the scan
will however take more time to complete.
Interleaved Scan:
This scan is meant to overcome the
limitations of the probe polarizations. By measuring a DUT twice with a small physical shift between
the two scans, blind spots can be eliminated (please refer to
page 64
).
3. ERX Control Level:
Select resolution level from 7.50 mm or Level 1 to 0.12 mm or Level 7. It is only
available on the ERX+.
EMxpert Software
Spatial Scan
Effective 0.12 mm No Interpolation
Physical 7.50 mm With Interpolation
