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 S11 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 (S21),
press:
or on ET models:
❏For ES analyzers, if you want to make a transmission measurement in the reverse
direction (S12), 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
Trans: FWD S21 (B/R)
TRANSMISSN
Meas
Trans: REV S12 (A/R)
Cal
CAL KIT [ ]
CAL KIT
SELECT CAL KIT
RETURN
CALIBRATE MENU
RESPONSE