Interface
Task
4.
Open the command prompt and enter the following text to change
the current directory to the folder that contains the built executable:
cd C:\Users\Public\Documents\National Instruments
\OTA Test\Examples\DotNET\VS20
xx
\OtaTestExample
\bin\Release
5.
Enter the following text into the command prompt to run the OTA
test:
OtaTestExample.exe -mode=StepByStep -
input="C:\Users\Public\Documents\National
Instruments\TestStand 20
xx
(64-bit)\Examples\OTA
Test\Sequences\Step_by_Step_NR.csv"
Note
Append the following text to the previous command to
test the positioner without performing any RF measurements:
-
positioneronly=true
Note
Use the OTA LabVIEW or Visual C# .NET API if your application
requires low-level control and configuration of the OTA test. Refer to the
for more information.
8.
When the test is complete, open the
Visualization
tab in the mmWave OTA Validation
Configurator. In the
Measurement File
field, browse to the results file from the test, then
click
OK
.
If the sequence finishes without error, your system is fully operational. You can display a 3D
antenna pattern and review the NR measurements results of the antenna. To verify the
accuracy of the test, refer to
on page 26.
Tip
NI recommends familiarizing yourself with the example sequences. When you
save the example sequence as a new file, you must also save the configuration file
with the same file name in the same folder location so the sequence file can load it
correctly.
Related Information
mmWave OTA Validation Positioner Control Panel
Getting Started with Autonomous Position Sweeping
With autonomous position sweeping, the measurement initiation is triggered by the positioner
instead of the test execution engine, which drastically reduces test time.
The motor control sends a digital trigger that causes the instrumentation to execute the
measurement at predefined points in the motion path. The measurement results and absolute
coordinates of the positioner are stored in a table to link each measurement with its exact
position later during results processing. During autonomous position sweeping, motion is
supervised by the test execution engine while all the measurements happen in a separate
autonomous thread driven by hardware signals.
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mmWave OTA Validation Test Reference Architecture
