Interpolation In Power Meter Calibration; Entering The Power Sensor Calibration Data - Agilent Technologies 8719ES User Manual

Calibrating for Increased Measurement Accuracy
Power Meter Measurement Calibration

Interpolation in Power Meter Calibration

If the frequency is changed in linear sweep, or the start/stop power is changed in power
sweep, then the calibration data is interpolated for the new range.
If calibration power is changed in any of the sweep types, the values in the power setting
array are increased or decreased to reflect the new power level. Some accuracy is lost when
this occurs.

Entering the Power Sensor Calibration Data

Entering the power sensor calibration data compensates for the frequency response of the
power sensor, thus ensuring the accuracy of power meter calibration.
1. Make sure that your analyzer and power meter are configured. Refer to the "Options
and Accessories" chapter of the reference guide for configuration procedures.
2. Press
PWRMTR CAL
Cal
The analyzer shows the notation EMPTY, if you have not entered any segment
information.
3. To create the first segment, press:
ADD FREQUENCY
4. Enter the frequency of a correction factor data point, as listed on the power sensor,
followed by the appropriate key:
5. Press
CAL FACTOR
that you have entered in the previous step. Complete the correction factor entry by
pressing
DONE
x1
6. Repeat the previous three steps to enter up to 55 frequency segments.
You may enter multiple segments in any order because the analyzer automatically sorts
them and lists them on the display by frequency value. The analyzer also automatically
interpolates the values between correction factor data points.
If you only enter one frequency segment, the analyzer assumes that the single value is
valid over the entire frequency range of the correction.
7. After you have entered all the frequency segments, press
Editing Frequency Segments
1. Access the Segment Modify menu by pressing
LOSS/SENSR LISTS
depending on where the segment is that you want to edit).
2. Identify the segment that you want to edit by pressing
and keys to locate and position the segment next to the pointer (>), shown on the
display. Or press
3. Press and then press either the
EDIT
depending on which part of the segment you want to edit.
6-34
LOSS/SENSR LISTS
G/n
and enter the correction factor that corresponds to the frequency
.
CAL FACTOR SENSOR A
and enter the segment number followed by
SEGMENT
CAL FACTOR SENSOR A
.
M/µ k/m
DONE
PWRMTR CAL
Cal
(or
CAL FACTOR SENSOR B
SEGMENT
or
FREQUENCY CAL FACTOR
.
.
,
and using the
.
x1
key,