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Functions and Measurements
Reflection Measurement
Reflection Measurement
Preparation
72
Press MODE > Reflection Measurement to access the cable and
antenna measurement submenu. There are three different
measurement modes for your selection:
• Reflection measurement
• One port cable loss
• Distance to fault
Before making a measurement in a specific mode, the HSA requires
a calibration to make sure the measurement accuracy. A new
calibration must be performed if any components used in the
calibration setup are changed. For example, a short coaxial cable
used to connect the tester to the DUT
Press Frequency and Span to set the measurement frequency range.
It is best to keep the calibration frequency range as close as
possible to the actual sweep frequencies necessary for the
measurements. Calibrating over a larger frequency range than the
actual measurement range will reduce the accuracy of the test
results.
Calibrate with a T-combo calibrator
T-combo calibrator
consists of a calibrated open, short and 50 load. Using the
T-combo calibrator will result in a more accurate calibration than
when using the an electronic calibrator.
Using a T-combo calibrator is a three step process requiring the
user to manually change the open-short-load components. The
default order of the calibration process is open-short-load.
1 Press Frequency > Calibrate to bring up the dialog box for
calibration instruction. Follow the on-screen instruction to
This is a T-shaped mechanical calibrator. It
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