6-17
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:
Preset
Meas
Meas
Cal
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