Agilent Technologies E5070B, User Manual

Page: 221 / 769

Chapter 4 215
Calibration
Power Calibration
4. Cal
ibra
tion
Selecting target port of error correction
The power level error correction is executed for each channel/test port. You can set the
following items for each channel/test port:
• ON/OFF of error correction
• Setting of loss compensation
• Selection of the power sensor
• Number of power level measurements at one measurement point
• Calibration data
Follow the steps below to select the test port for which you want to set/execute power level
error correction.
Step 1. Press .
Step 2. Press
Power Calibration
.
Step 3. Press or to select the channel.
Step 4. Press
Select Port
.
Step 5. Press the softkey corresponding to the test port you want to select.
Setting loss compensation
If you need to apply a signal with a more accurate power level to the DUT, you can use the
loss compensation feature to obtain calibration data for correcting the difference in power
loss due to the difference in connection method (cable, adapter, etc.) between the time
when the power calibration data are measured and when the actual DUT is measured.
The loss compensation feature corrects the power measurement result based on the preset
power loss data. More specifically, if you turn on the loss compensation, the measurement
result of the power level obtained in the power calibration data measurement is a value
obtained by adding the loss value set in the loss compensation table to the measured power
value.
Turning ON/OFF loss compensation
Follow these steps to turn ON/OFF the loss compensation.
Step 1. Press .
Step 2. Press
Power Calibration
.
Step 3. Select a port (see “Selecting target port of error correction” on page 215).
Step 4. Press
Loss Compen
.
Step 5. Press
Compensation
. Each press toggles the selection between ON/OFF.