6-15
Calibrating for Increased Measurement Accuracy
Frequency Response Error Corrections
NOTE Do not use an open or short standard for a transmission response correction.
NOTE You can save or store the measurement correction to use for later
measurements. Refer to the Chapter 4, “Printing, Plotting, and Saving
Measurement Results” for procedures.
7. This completes the response correction for transmission measurements. You can
connect and measure your device under test.
Receiver Calibration Receiver calibration provides a frequency response error correction for a non-ratioed
measurement that also indicates absolute power in dBm. This calibration is most useful
when performed with a power meter calibration. This calibration is only allowed for
non-ratioed measurements A, B, and R.
This calibration normalizes the trace to the current reference value. Typically, this
reference value is entered to be the same as the current source power.
1. Perform a power meter calibration to the desired level. Refer to step A of Figure 6-4.
Use −10 dBm for this example. (See also, "Power Meter Measurement Calibration" on
page 6-33.) This provides a calibrated power, referenced to the power meter, to use as a
receiver calibration standard.
or
Set the analyzer test port power to the desired level (−10 dBm in this example) by
pressing:
. This calibrates the receiver to the approximate accuracy of the
source output power, which is subject to the source power flatness specification.
2. Make a "thru" connection between the points where you will connect your device under
test. Refer to Step B of Figure 6-4.
NOTE Include any adapters or cables that you will have in the device m easurement .
That is, connect the standard device where you will connect your device under
test.
Power −10 x1