Specifications

7-5 STANDARD 2-PORT
(OSL) CALIBRATION
PROCEDURE
The standard 2-port calibration for the MS462XX Vector Network
Measurement System uses an Open, a Short, a Broadband and/or
Sliding Load, and a throughline connection to categorize the inherent
errors in the measurement system. These errors include those caused
by connectors as well as internal system errors such as RF leakage, IF
leakage, and component interaction. For maximum accuracy, install
the capacitive coefficients (for the open device) using the
CALIBRATION COMPONENTS UTILITIES menu (page D-27).
Calibration
Procedure
A detailed, step-by-step procedure for performing a
Open-Short-Load calibration is given below.
Step 1.
Press Appl (top left) then TRANSMISSION AND
REFLECTION.
Step 2. Press Cal (bottom left) then PERFORM CAL
2-PORT CAL.
Pressing this key starts a linked set of soft-key
choices that guide you through a measurement cali-
bration.
Step 3.
Observe the CAL METHOD and LINE TYPE
soft-key options. If they read STANDARD and
COAXIAL, respectively, go to step 5.
Step 4. Press the following soft keys in sequence:
CHANGE CAL METHOD AND LINE TYPE
CAL METHOD STANDARD
LINE TYPE COAXIAL
NEXT CAL STEP
Step 5.
Press NEXT CAL STEP then FULL 12-TERM.
This soft key calibrates for the twelve error terms as
-
sociated with a two-port calibration.
Step 6.
Press INCLUDE ISOLATION ( STANDARD ).
This soft-key set lets you choose whether to include or
exclude the error terms associated with leakage be
-
tween measurement channels. For a normal calibra
-
tion, you would choose to include these error terms.
Step 7.
Press NORMAL (1601 POINTS MAXIMUM).
This soft-key set lets you select the number of fre
-
quency points at which calibration data is to be
taken. The choices: NORMAL: Data is taken at up to
1601 equally spaced frequencies across the calibra
-
MEASUREMENT STANDARD 2-PORT
CALIBRATION (OSL) CALIBRATION
MS462XX OM 7-19
Data Entry
Power
Keyboard
Port 3
Channels
Enhancement
Stimulus
System
Port 1
Port 2
Probe Power
1
8
5
2
9
6
3
-
.
G/ns/m
M/ s/cm

k/ms/mm
X1
Enter
Local
Appl
Meas
Marker
Hold
Ch 1
Ch 2
Ch 4
Ch 3
Freq
Sweep
Power
Config
Seq
Cal
Avg
Utility
Hard
Copy
Default
Save /
Recall
0
7
4
Display
Clr
Print
Soft
Keys
Appl
Data Entry
Power
Keyboard
Port 3
Channels
Enhancement
Stimulus
System
Port 1
Port 2
Probe Power
1
8
5
2
9
6
3
-
.
G/ns/m
M/ s/cm

k/ms/mm
X1
Enter
Local
Appl
Meas
Marker
Hold
Ch 1
Ch 2
Ch 4
Ch 3
Freq
Sweep
Power
Config
Seq
Cal
Avg
Utility
Hard
Copy
Default
Save /
Recall
0
7
4
Display
Clr
Print
Soft
Keys
Cal