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Calibrating for Increased Measurement Accuracy
Frequency Response and Isolation Error Corrections
Frequency Response and Isolation Error Corrections
You can make a response and isolation correction for the following measurements:
• reflection measurements
• transmission measurements
• combined reflection and transmission measurements
NOTE Although you can perform a response and isolation correction for reflection measurements,
we recommend that you perform an S
11
one-port error correction; it is more accurate and
just as convenient.
Response and Isolation Error Correction for Transmission Measurements
This procedure is intended for measurements that have a measurement range of greater than 90 dB.
1. Press .
2. Select the type of measurement you want to make.
❏ If you want to make a transmission measurement in the forward direction (S
21
), press:
or on ET models:
❏ For ES analyzers, if you want to make a transmission measurement in the reverse direction (S
12
),
press:
3. Set any other measurement parameters that you want for the device measurement: power, number of
points, IF bandwidth.
4. To access the measurement correction menus, press:
5. If your calibration kit is different than the kit specified under the softkey, press:
(select your type of kit)
If your type of calibration kit is not listed in the displayed menu, refer to "Modifying Calibration Kits" on
page 7-57.
6. To select a response and isolation correction and to start the response portion of the calibration, press:
7. Make a "thru" connection between the points where you will connect your device under test.
NOTE Include any adapters that you will have in the device measurement. That is, connect the
standard device to the particular connector where you will connect your device under test.
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