Procedures For Error Correcting Your Measurements; Types Of Error Correction - Agilent Technologies 8753ET User Manual

Calibrating for Increased Measurement Accuracy

Procedures for Error Correcting Your Measurements

Procedures for Error Correcting Your Measurements
This section has example procedures or information on the following topics:
• frequency response correction
• frequency response and isolation correction
• enhanced frequency response correction
• one-port reflection correction
• full two-port correction (ES Analyzers Only)
• TRL*/LRM* correction (ES Analyzers Only)
• power meter measurement calibration procedure
If the channels are uncoupled, you must make a correction for each channel.
NOTE

Types of Error Correction

Several types of error correction are available that remove from one to twelve systematic
errors. The full 2-port correction effectively removes all twelve correctable systematic
errors. Some measurements do not require correction for all twelve errors.
explains each correction and its uses.
Table 6-2 Purpose and Use of Different Error Correction Procedures
Correction Procedure
Response
Response & Isolation
Enhanced Response
6-10
Corresponding
Measurement
Transmission or
reflection
measurement when
the highest accuracy
is not required.
Transmission of high
insertion loss devices
or reflection of high
return loss devices.
Not as accurate as
1-port or 2-port
correction.
Transmission or
reflection
measurement when
improved accuracy is
desired. Not as
accurate as 2-port
calibration.
Errors Corrected
Frequency response.
Frequency response
plus isolation in
transmission or
directivity in
reflection.
Directivity, source
match, and frequency
response for
reflection. Frequency
response, source
match, and isolation
for transmission.
Table 6-2
Standard Devices
Thru for
transmission, open or
short for reflection.
Same as response
plus isolation
standard. (load)
Short, open, load, and
thru.