HP Saw E4419B manual Zero a Cal

Frequency Cal Fac

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 A-B , or B-A .

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

•Press

•Press

ZerCalo .

Zero A.

Cal.

HP E4419B User’s Guide 2-19