Other topics about Performing Calibration
The E5071C has a receiver calibration capability to calibrate the gain for each receiver in an absolute measurement.
Before starting a measurement of receiver calibration data, you must connect a THRU between the source port at which power calibration was applied and the receiver port on which you want to implement receiver calibration.
Use the following command for the measurement of receiver calibration data and calculation of calibration coefficient. The value following REC signifies a receiver port number, and the value given as an argument is a source port number. Specifying the same port to both the receiver port and source port will cause an error.
:SENS{1-160}:CORR:REC{1-4}:COLL:ACQ
From Firmware rev 9.2, you can calibrate the receiver and transmitter port independently.
Use the following command to calibrate the receiver port:
:SENS{1-160}:CORR:REC{1-4}:COLL:RCH:ACQ
Use the following command to calibrate the transmitter port:
:SENS{1-160}:CORR:REC{1-4}:COLL:TCH:ACQ
Once the measurement is completed, calculation of the calibration coefficient takes place automatically, turning on receiver error correction automatically.
The power calibration information on both the receiver port and source port is used to calculate calibration coefficients. The accuracy of receiver calibration will increase if power calibration is implemented for both the receiver port and the source port before starting receiver calibration. For information on power calibration, refer to Power Calibration.
Verify the frequency of each port before starting a frequency offset sweep. Since this command does not change the frequency setting, you cannot expect a correct measurement result unless the frequency is the same for both the receiver port and the source port.
When using power calibration in combination with receiver calibration, you must implement it so that it sufficiently covers the frequencies of both ports or implement it twice, before and after the receiver calibration.
To turn on or off the receiver error correction, use the following command:
:SENS{1-36}:CORR:REC{1-4}
Once the measurement of receiver calibration data is completed with the :SENS{1-36}:CORR:REC{1-4}:COLL:ACQ command, receiver error correction is automatically turned on.