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 Table 7-1.
Each standard must be identified as one of five "types": open, short, load, delay/thru, or
arbitrary impedance.
Table7-1 Standard Definitions
System Z0a = __________________________________________
a. Ensure system Z0 of network analyzer is set to this value.
Calibration Kit Label _____________________________________________
Disk File Name: __________________________
STANDARDb
b. Open, short, load, delay/thru, or arbitrary impedance.
C0c
×10−15
F
c. Open standa rd typ e s o nly.
C1c
×10−27
F/Hz
C2c
×10−36
F/Hz2
C3c
×10−45
F/Hz3
FIXEDd
SLIDING
or
OFFSET
d. Load or arbitrary impedance only.
TERMe
IMPED
Ω
e. Arbitrary impedance only, device terminating impedance.
OFFSET FREQ (GHz) COAX
or
WG
STND
LABEL
NO. TYPE DELAY
s
Z0
Ω LOSS
Ω/s MIN MAX
1
2
3
4
5
6
7
8
LABEL KIT
TRL/LRM OPTION
KIT DONE (MODIFIED)
SAVE USER KIT