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HP4402.book : chapter2.fm 18 Wed Apr 23 15:29:05 1997
Power Meter Operation
Making Measurements using Sensor Calibration Tables
2-18 HP EPM-442A User’s Guide
A calibration factor in the range of 1% to 150% can be entered.
The following rules apply to naming sensor calibration tables:
■ The name must consist of no more than 12 characters.
■ All characters must be upper or lower case alphabetic
characters, or numeric (0-9), or an underscore (_).
■ No other characters are allowed.
■ No spaces are allowed in the name.
2. To edit the parameter you currently have selected press .
The power meter displays the data in a pop up window. Modify
this data (see below) as desired.
■ Use or to modify the character on which the cursor
is currently positioned.
■ Use or to move to other characters.
3. To confirm your choice press the appropriate softkey.
4. To add a new sensor calibration table entry press . You are
prompted for the frequency and calibration factor. The entry is
sorted by frequency.
5. To remove a sensor calibration table entry use the , ,
and hardkeys to select the entry, press . If you
delete the frequency the equivalent calibration factor is also
removed and vice versa.
Note You can only edit the table name you cannot delete it.
6. When you have completed editing the sensor calibration table
press to return to the “Sensor Tables” screen.
Note Ensure that the frequency points you use cover the frequency
range of the signals you want to measure. If you measure a signal
with a frequency outside the frequency range defined in the sensor
calibration table, the power meter uses the highest or lowest
frequency point in the sensor calibration table to calculate the
calibration factor.
Change
Insert
Delete
Done