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Functions and Measurements
Reflection Measurement
Reflection Measurement
Press MODE > Reflection Measurement to access the cable and
antenna measurement submenu. There are three different
measurement mode for your selection:
• Reflection measurement
• One port cable loss
• Distance to fault
Preparation
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 This is a T- shaped mechanical calibrator.
It consists of a calibrated open, short and 50 Ω 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
connect the Open component of the T- combo calibrator to
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