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FOR RESPONSE
FOR ISOLATION
POSSIBLE
ADAPTERS
LOAD LOAD
pg613e
Figure 5-5.
Standard Connections for a Response and Isolation Error-Correction for Transmission
Measurements
Note
If you will be measuring highly reflective devices, such as
filters,
use the test
device, connected to the reference plane and terminated with a load, for the
isolation standard.
10.
‘Ib
help remove crosstalk noise, set the analyzer as follows:
. .
a. press
LAvgl:~~~~~~~~~~
/..
.
,,,,
,,,,
,,
,,,
-‘E>.
.“:.::.,(.:.:.,
.i.
...,,,
~~~~~~~~~~~;~
ad
enter at
leaf,
four
times
more
,.
,.......
:,.:;
. . . . . . . . . . . . . .
s
. . . .
s
,.....................................,,.
./;
,.......,
i......
i.................................
. . . . . . . . .
s.
i::.:::::
.
..s
. . . .
S.......il........
>.......
averages than desired during the device measurement.
:, . . . . . .
~.““:.:.:.:::::.
:::::.:....~::::,::::~,:,::~
,:,,-:
::
:,
:
:,
::::,,,.,
:;
;
.:..-::::.:.:.:...:.:.:.:.:.::.:...:.:.~.~.:.:.:.:.~...:.::.~.:.~;:.:.:.::
b.
~~~~
1Cal]
s#$fj~
:~~~~~~~~~
to
eli&.,ate
one
mosst&
path.
,.,.....,.................... .::.:::.:..:.. .:
.:
. . . . . . . . . . . .
i.~..~...~...~...~.~.~.~.~.~.~
i:..::.::..
.:.c::..
11.
‘Ib
measure the calibration standard, press:
12. Return the averaging to the original state of the measurement. For example, reduce the
averaging factor by at least four times or turn averaging off.
13.
To
compute the isolation error coefficients, press:
The analyzer displays the corrected data trace. The analyzer also shows the notation Cor at
the left of the screen, indicating that the correction is switched on for this channel.
Note
You can save or store the measurement correction to use for later
measurements Refer to the “Printing, Plotting, and Saving Measurement
Results” chapter for procedures.
14. This completes the response and isolation correction for transmission measurements You
can connect and measure your device under test.
Optimizing Measurement Results
5-17