Power Meter Operation
Making Measurements with the HP 8480 Series Power Sensors
6.The current setting of the reference calibration factor is displayed under the A Ref CF softkey. To change this setting press
A Ref CF . The power meter displays the reference calibration factor in a pop up window. Modify this reference calibration factor (see below) as desired.
■Use 
or 
to modify the digit on which the cursor is currently positioned.
■Use 
or 
to move to other digits.
7.To confirm your choice press % .
8.Press Cal, Cal A to calibrate the power meter. During calibration the wait symbol is displayed. (The power meter automatically turns on the POWER REF output.)
9. Press 
. The current setting of the calibration factor is displayed under the A Cal Fac softkey. To change this setting press A Cal Fac. The power meter displays the calibration factor in a pop up window. Modify this calibration factor (see below) as desired.
■Use 
or 
to modify the digit on which the cursor is currently positioned.
■Use 
or 
to move to other digits.
10.To confirm your choice press % .
11.Connect the power sensor to the signal to be measured.
12.You must set the display to the type of measurement you require. This can either be a direct channel measurement, a ratio measurement of both channels, or a difference measurement
between both channels. Use the following key presses:
Press SetupMeas , Input Select. Select the appropriate softkey for the measurement you require, either A, B, A/B , B/A , or More , then
13.The measurement result is now displayed.
Example
To make a measurement on channel A with a power sensor which has a reference calibration factor of 99.8% and a calibration factor of 97.8% at the measurement frequency.
•Disconnect the power sensor from any source.
•Press ZerCalo .
•Press Zero A.
•Press Cal.
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