1.
Secure the laser alignment fixture to the measurement antenna fixture using an Allen
wrench to tighten the screws and alignment pins on the fixture.
3
2
1
1. Allen Screw
2. Laser Alignment Fixture
3. Calibration Laser
2.
Attach the calibration laser to the laser alignment fixture and plug the laser USB cable
into the USB port inside the chamber.
3.
Use the alignment knobs on the measurement antenna fixture to move the measurement
antenna horizontally and vertically until the laser cross hits the center of the reference
antenna.
When the laser cross hits the center of the reference antenna, the measurement antenna is
aligned.
4.
Attach the reference antenna laser to the reference antenna fixture and plug the reference
antenna laser USB cable into the USB port inside the chamber.
5.
Use the mmWave OTA Test Positioner SFP to move the laser until it is aligned to the
center of the measurement antenna fixture.
6.
When the laser cross hits the center of the measurement antenna fixture, add
90°
to the
current
Elevation
number and click the
Set Absolute Home
button on the
Settings
tab in
the mmWave OTA Test Positioner SFP.
The position is saved in the chamber and remains after restarting the system.
mmWave OTA Validation Test Reference Architecture
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© National Instruments
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17