The following calibration types are available in the VNA.
Cal Type |
Interface |
Accuracy |
Thru Methods allowed |
Basic Cal Cal All SmartCal ECal |
Very High |
All except Unknown Thru |
|
Basic Cal Cal All SmartCal ECal |
High |
All |
|
Basic Cal Cal All SmartCal ECal |
High |
Unknown Thru |
|
Basic Cal SmartCal |
High |
Defined Thru or Flush Thru |
|
QSOLT (Quick SOLT) |
Basic Cal SmartCal |
Medium |
Defined Thru or Flush Thru |
Basic Cal Cal All SmartCal ECal |
High |
Not Applicable |
|
Open/Short Response |
Basic Cal Response Cal |
Low |
Not Applicable |
Thru Response |
Basic Cal Response Cal |
Low |
Known Thru or Flush Thru |
Learn how to select a default Cal Type.
Application: Used to accurately calibrate any pair of ports when calibration standards are not readily available.Note: A Delta Match Cal may be required. • Learn more about TRL family cal • For more information on modifying standards, see Calibration Standards. |
Calibration Method: Basic Cal, SmartCal, Cal All |
General Accuracy: Very High |
Standards Required: THRU, REFLECT, LINE or similar combination |
Systematic Errors Corrected:• Directivity• Source match• Isolation (see exceptions)• Load match• Frequency response transmission tracking• Frequency response reflection tracking |
Application: Used to accurately calibrate any number of ports. |
General Accuracy: High |
Calibration Method: Basic Cal, SmartCal, Cal All, ECal |
Standards Required: (SHORT, OPEN, LOAD, THRU) or ECal module |
Systematic Errors Corrected (on all ports):• Directivity• Source match• Isolation (see exceptions)• Load match• Frequency response transmission tracking• Frequency response reflection tracking |
Application: Used to accurately calibrate any two ports. |
General Accuracy: High |
Calibration Method: Basic Cal, SmartCal, Cal All, ECal |
Standards Required: (SHORT, OPEN, LOAD, Reciprocal THRU) or ECal module |
Systematic Errors Corrected (on all ports):• Directivity• Source match• Isolation (see exceptions)• Load match• Frequency response transmission tracking• Frequency response reflection tracking |
Application: Used to calibrate two ports when only measurements in one direction (forward OR reverse) are required. Measurements are faster because a second sweep is NOT required.• Reflection Standards (OPEN, SHORT, LOAD) are connected to the source port to be calibrated.• Defined THRU or Flush THRU standard is connected between port pairs. • Much quicker than SOLT when using a mechanical cal kit. ECal can also be used.To select Enhanced Response: For a standard S-parameter Cal, select Cal > Main > Basic Cal.... Then, In the Basic Cal dialog box:
|
General Accuracy: High |
Calibration Method: Basic Cal, SmartCal, ECal |
Standards Required: (SHORT, OPEN, LOAD, Defined THRU or Flush THRU) |
Systematic Errors Corrected:• Directivity (source port)• Source match (source port)• Isolation (see exceptions)• Load match (receiver port) - used only to produce transmission tracking term.• Frequency response transmission tracking (receiver port).• Frequency response reflection tracking (source port). |
Application: Used to quickly calibrate any number of ports. Developed specifically for use with external multiport test sets.Note: A Delta Match Cal is required to cal test ports that do not have a dedicated reference receiver. • Reflection Standards (OPEN, SHORT, LOAD) are connected to only ONE of the ports to be calibrated. The lower port number of the ports to be calibrated is selected by default. This can be changed through the Modify Cal / Cal Type setting.• Defined THRU or Flush THRU standards are connected from the reflection standard port to the remaining ports to be calibrated. • Much quicker than SOLT when using a mechanical cal kit.• Based on TRL math. |
General Accuracy: Not as high as SOLT |
Calibration Method: Basic Cal, SmartCal, ECal |
Standards Required: (SHORT, OPEN, LOAD, Defined THRU or Flush THRU) |
Systematic Errors Corrected:• Directivity• Source match• Isolation (see exceptions)• Load match• Frequency response transmission tracking• Frequency response reflection tracking |
Application: Used to accurately calibrate any single test port for reflection measurements only. |
Calibration Method: Basic Cal, SmartCal, Cal All, ECal |
General Accuracy: High |
Standards Required: (SHORT, OPEN, LOAD) or ECal module |
Systematic Errors Corrected:• Directivity• Source match• Frequency response reflection tracking |
Application: Used to quickly calibrate any single test port for reflection measurements only. |
Calibration Method: Basic Cal, Response Cal |
General Accuracy: Low |
Standards Required: OPEN or SHORT |
Systematic Errors Corrected:Frequency response reflection tracking |
Application: Used to quickly calibrate any pair of test ports for transmission measurements only.Isolation is not usually recommended. Learn more about Isolation |
Calibration Method: Basic Cal, Response Cal, and Guided Cal from the 'Select DUT Connectors page', check Modify Cal, then click Next. |
General Accuracy: Low |
Standards Required: THRUIsolation: One LOAD for each VNA test port. |
Systematic Errors Corrected:• Frequency response transmission tracking• Isolation |