7- 59
Operating Concepts
Modifying Calibration Kits
• leads to a menu for constructing a label for the user-modified cal kit. If a label is
supplied, it will appear as one of the five softkey choices in the select cal kit menu. The approach is
similar to defining a display title, except that the kit label is limited to ten characters.
• brings up the TRL Option menu.
• terminates the calibration kit modification process, after all standards
are defined and all classes are specified. Be sure to save the kit with the softkey, if
it is to be used later.
Define Standard Menus
Standard definition is the process of mathematically modeling the electrical characteristics (delay,
attenuation, and impedance) of each calibration standard. These electrical characteristics (coefficients) can
be mathematically derived from the physical dimensions and material of each calibration standard, or from
its actual measured response. The parameters of the standards can be listed in
Tab l e 7-1.
Each standard must be identified as one of five "types": open, short, load, delay/thru, or arbitrary
impedance.
Tab le 7-1 Standard Definitions
System Z
0
a
= __________________________________________
a. Ensure system Z
0
of network analyzer is set to this value.
Calibration Kit Label _____________________________________________
Disk File Name:
__________________________
STANDARD
b
b. Open, short, load, delay/thru, or arbitrary impedance.
C0
c
10
15
F
c. Open standard types only.
C1
c
10
27
F/Hz
C2
c
10
36
F/Hz
2
C3
c
10
45
F/Hz
3
FIXED
d
SLIDING
or
OFFSET
d. Load or arbitrary impedance only.
TERM
e
IMPED
e. Arbitrary impedance only, device terminating impedance.
OFFSET FREQ (GHz) COAX
or
WG
STND
LABEL
NO. TYPE DELAY
s
Z
0
LOSS
/s
MIN MAX
1
2
3
4
5
6
7
8
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