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kRSPti#SE
. When in the specify class more menu,
IB!$PSMSE
is used to
enter the standard numbers for a response calibration. This
calibration corrects for frequency response in either reflection
or transmission measurements, depending on the parameter
being measured when a calibration is performed. (For default
kits, the standard is either the open or short for reflection
measurements, or the thru for transmission measurements.)
n
When in the response cal menu,
RE$P.C#SE
leads to the
frequency response calibration. This is the simplest and
fastest accuracy enhancement procedure, but should be
used when extreme accuracy is not required. It effectively
removes the frequency response errors of the test setup for
reflection or transmission measurements.
n
When in the specify class more menu,
KESP!BX$
t
‘X%X’1
is used to enter the standard numbers for a response and
isolation calibration. This calibration corrects for frequency
response and directivity in reflection measurements,
or frequency response and isolation in transmission
measurements
n
When in the response and isolation menu,
~@ZSPf8!&E;:$
J&X?l
leads to the menus used to perform
a response and isolation measurement calibration, for
measurement of devices with wide dynamic range. This
procedure effectively removes the same frequency response
errors as the response calibration. In addition, it effectively
removes the isolation (crosstalk) error in transmission
measurements or the directivity error in reflection
measurements. As well as the devices required for a simple
response calibration, an isolation standard is required.
The standard normally used to correct for isolation is an
impedance-matched load (usually 50 or 75 ohms). Response
and directivity calibration procedures for reflection and
transmission measurements are provided in the following
pages.
turns off the tabular listing and returns the measurement
display to the screen.
eliminates the need to restart a calibration sequence that was
interrupted to access some other menu. This softkey goes back
to the point where the calibration sequence was interrupted.
measures the reverse isolation of the calibration standard.
lets you enter a label for the reverse match class. The label
appears during a calibration that uses this class.
&+&p&
(Specify
Class)
..i
:.
. . . . .
specifies which standards are in the reverse match class in the
calibration kit.
is used to enter the standard numbers for the reverse match
(thru) calibration. (For default kits, this is the thru.)
9-36
Key Definitions