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Performance Tests
V. Polarization Dependent Loss (PDL): Optional
already selected.
c. Modify the filter setting to find the maximum signal
transmission through the polarization controller:
• Select the most significant digit by using the cursor key.
Use the Modify knob to adjust the displayed angle
slowly until the power reading on the multimeter shows
the maximum value.
• Select the next digit with the cursor key.
Use the Modify knob to adjust the displayed angle
slowly until the power reading on the multimeter shows
the maximum value.
• Select the least significant digit by using the cursor key.
Use the Modify knob to adjust the displayed angle
slowly until the power reading on the multimeter shows
the maximum value.
• Press E
NTER
• Note the displayed angle of the polarization filter as
"Polarizer Setting, Linear Horizontal Polarization" in the
Test Record.
For the following steps, the polarizer is kept constant.
Set plates for Linear Horizontal polarization
7. Set the
λ/4 Retarder Plate for Linear Horizontal polarization.
a. Select the
λ/4 Retarder Plate.
Press
λ/4
b. Modify the
λ/4 plate setting to the same angle as the
polarization filter found in item 6c.
c. Press ENTER
d. Note the angle as "λ/4 Plate Setting, Linear Horizontal
Polarization" in the Test Record.
8. Set the λ/2 Retarder Plate for Linear Horizontal polarization.