| Power Meter Operation |
| Zeroing and Calibrating the Power Meter |
| There are a variety of methods to connect the power sensors to the power |
| meter depending on the model of power sensor you are using. Refer to |
| Table |
| models. |
|
|
Note | The following procedure details the calibration for channel A. To |
| calibrate channel B use the same procedure using the equivalent |
| channel B softkeys. To calibrate both channels sequentially follow |
| this procedure for channel A then repeat step “2” through to step |
| “5” using the equivalent channel B softkeys. |
|
|
1. Press Zero
Cal
,
Cal.
2.Verify the reference calibration factor of your power sensor with that displayed under A Ref CF . The value shown is obtained from the sensor calibration table if one is selected, otherwise it is the last value set or the default of 100%. If the value is not correct 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.
3.To confirm your choice press % .
4.Connect the power sensor to the POWER REF output.
5.Press Cal A to calibrate the power meter. During calibration the wait symbol is displayed. (The power meter automatically turns on the POWER REF output.)
Example
To calibrate both channels of the power meter. The reference calibration factors for the power sensors being 98.8% and 99.4% for channel A and channel B respectively:
•Press ZerCalo , Cal.
•Press A Ref CF . Use the 
, 
, 
and 
hardkeys to enter 98.8. Press % .
•Press B Ref CF . Use the 
, 
, 
and 
hardkeys to enter 99.4. Press %.
•Connect the channel A power sensor to the POWER REF output.
•Press
Cal A .
HP E4419B User’s Guide |
