Error-Correction Stimulus State - Agilent Technologies 8719D User Manual

Transmission or reflection
measurement when the highest
accuracy is not required.
Response & isolation Transmission of high insertion loss Frequency response plus
devices or reflection of high return isolation in transmission or
loss devices. Not as accurate as
l-port or a-port correction.
Reflection of any one-port device
or well terminated two-port
device.
Reflection of any one-port device
or well terminated two-port
device.
Transmission or reflectidn of
Full a-port
highest accuracy for two-port
devices.
Option 400 the same level of error correction match, load match,
as full 2-port is required.
Error-correction is only valid for a specific stimulus state, which you must select before you
start a correction. If you change any of the following parameters, you will invalidate the
correction and the analyzer will switch the correction off (unless the interpolated error
correction feature is activated).
frequency range
n
number of points
n
sweep type
n
The error-correction quality may be degraded (Cor changes to CA), if you change the following
stimulus state parameters:
sweep time
n
system bandwidth
n
output power
n
If you activate averaging, the analyzer may increase the sweep time if more
time is needed to calculate the averages. If the sweep time changes, you will
see Cor change to CA. The number of averages does not affect a sweep cycle
time. Therefore, if you use averaging for error-correction, leave it on for the
measurement and set the averaging factor to 1, for a faster sweep.
Corresponding
Measurement
Frequency response
directivity in reflection
Directivity, source match,
frequency response.
Directivity, source match,
frequency response.
Directivity, source match,
load match, isolation,
frequency response,
forward and reverse.
frequency response
(forward and reverse)
Directivity, isolation,
frequency response
(forward end reverse)
Errors Corrected
Thru for transmission, open
or short for reflection
Same as response plus
isolation standard (load)
Short and open and load
Short and open and load
Short and open and load and
thru (2 loads for isolation)
reflect, match, or thru,
reflect, match
Thru, reflect, line, or line,
reflect, mat& or thru,
reflect, match
Optimizing Measurement Results 6-6
Devices