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Calibrating for Increased Measurement Accuracy
Power Meter Measurement Calibration
3. Press and then press either the or key, depending on
which part of the segment you want to edit.
❏ If you are modifying the frequency, enter the new value, followed by a , , or key.
❏ If you are modifying the correction factor, enter the new value, followed by the key.
4. Press after you have finished modifying the segment.
5. If you want to edit any other segments, press and follow the previous steps, starting with
step 2.
Deleting Frequency Segments
1. Access the Segment Modify menu by pressing
(or , depending on where the segment
is that you want to delete).
2. Identify the segment that you want to delete by pressing and using the and
keys to locate and position the segment next to the pointer (>), shown on the display. Or press
and enter the segment number followed by .
3. Press .
The analyzer deletes the segment and moves the remainder of the segments up one number.
4. You could also delete all the segments in a list by pressing .
5. Press when you are finished modifying the segment list.
Compensating for Directional Coupler Response
If you use a directional coupler to sample power in your measurement configuration, you should enter the
coupled arm power loss value into the power loss table, using the following procedure. You can enter the
loss information in a single segment, and the analyzer will assume that the value applies to the entire
frequency range of the instrument. Or, you can input actual measured power loss values at several
frequencies using up to 12 segments, enhancing power accuracy.
1. Press .
The analyzer shows the notation EMPTY, if you have not entered any segment information.
2. To create the first segment, press and enter a frequency of a correction factor
data point, followed by the appropriate key: .
3. Press and enter the power loss that corresponds to the attenuation of the directional coupler
(or power splitter) at the frequency that you have entered in the previous step. Complete the power loss
entry by pressing
.
NOTE Remember to subtract the through arm loss from the coupler arm loss before entering it into
the power loss table, to ensure the correct power at the output of the coupler.
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