VectorStar™ MS464xB Series Microwave Vector Network Analyzer User Interface Reference : Response Menus – 4-Port VNAs : Primary Response Menus – 4-Port VNAs
 
Primary Response Menus – 4-Port VNAs
RESPONSE Menu – 4-Port VNAs
Previous
• MAIN Menu
Prerequisites
• The VNA must be in 4-Port Mode
Navigation
• MAIN | Response | RESPONSE
RESPONSE Menu – 4-Port VNAs – Menu Variants 
1. RESPONSE Menu – 4-Port VNA
• Option 41/48 – Noise Figure is not equipped.
• Optical Measurements is OFF.
2. RESPONSE Menu – 4-Port VNA
• Option 41/48 – Noise Figure is equipped.
• The VNA measurement mode at the APPLICATION menu is not set to Noise Figure.
3. RESPONSE Menu – 4-Port VNA
• Option 41/48 – Noise Figure is equipped.
• The VNA measurement mode at the APPLICATION menu is set to Noise Figure.
• The User-Defined button is unavailable.
• The Mixed-Mode button is unavailable.
4. Response Menu – 4-Port VNA
• Option 41/48 – Noise Figure is not equipped.
• Optical Measurements is ON.
Button Selection Group
• All the buttons of the RESPONSE menu form a button selection group where the selection of any one button de-selects the other buttons.
S11
Select sets the response to the input reflection coefficient (or S11 Forward Reflection) and de-selects all other buttons.
S12
Select sets the response to the reverse transmission coefficient (or S12 Reverse Transmission) and de-selects all other buttons.
S21
Select sets the response to the forward transmission coefficient (or S21 Forward Transmission) and de-selects all other buttons.
S22
Select sets the response to the output reflection coefficient (or S22 Reverse Reflection) and de-selects all other buttons.
More Single-Mode
Select de-selects other buttons and displays the SINGLE-MODE menu where 4-Port S-Parameters are selected from the following selections: S13, S14, S23, S24, S31, S32, S33, S34, S41, S42, S43, S44.
• SINGLE-MODE Menu – 4-Port VNAs
User-Defined
Select sets the response to a user-defined mathematical fraction, and displays the USER DEFINED menu to select S11, S12, S21, S22, or 1 (one) as a numerator over S11, S12, S21, S22, or 1 as the denominator. Select also de-selects all other buttons. This button is unavailable if the VNA measurement mode at the APPLICATION menu is set to Noise Figure. Option 41 or Option 48 must be equipped for Noise Figure.
• User-Defined Parameter Menus
Mixed-Mode
Select de-selects all other menu buttons and displays the MIXED MODE dialog box for three general mixed-mode configurations of:
• Two differential pairs
• One differential pair and one singleton
• One differential pair and two singletons
The button field displays the currently selected mixed-mode settings where the SXXXX is the selected response type and numbers are the assigned port number.
• MIXED MODE Setup Dialog Box – Two Diff. Pairs – 4-Port VNAs
• MIXED MODE Setup Dialog Box – One Diff. Pair – One Singleton – 4-Port VNAs
• MIXED MODE Setup Dialog Box – One Diff. Pair – Two Singletons – 4-Port VNAs
This button is unavailable if the VNA measurement mode at the APPLICATION menu is set to Noise Figure. Option 41 or Option 48 must be equipped for Noise Figure.
Ext. Analog In 1
Select displays the EXT ANALOG 1 menu and de-selects all other buttons.
• EXT. ANALOG IN 1 Menu – 4-Port VNAs
Ext. Analog In 2
Select displays the EXT ANALOG 2 menu and de-selects all other buttons.
• EXT. ANALOG IN 2 Menu – 4-Port VNAs
Analog In Cal
Opens the Analog In Cal Dialog Box.
Mean Opt. Pwr. 1
Allows selection of driving port. Displays responsivity.
• MEAN OPT. PWR. 1 Menu – 4-Port VNAs
Mean Opt. Pwr. 2
Allows selection of driving port. Displays responsivity.
• MEAN OPT. PWR. 2 Menu – 4-Port VNAs
Noise Figure
This button is only present if Option 41 – Noise Figure or Option 48 – Differential Noise Figure is equipped on the VNA. If present, it is only available if the VNA application mode is set to Noise Figure. The application mode is set on the APPLICATION menu at:
• MAIN | Application | APPLICATION
• Noise Figure (Option 41)
• Differential Noise Figure (Option 48)
If present and available, select de-selects all other response types and displays the NF RESPONSE menu, where the noise figure response type is selected.
• NF RESPONSE Menu – 4-Port VNAs (Option 41)
• NF RESPONSE Menu – 4-Port VNAs (Option 48)
If the Noise Figure button is available, the User-Defined and Mixed-Mode buttons are unavailable.
SINGLE-MODE Menu – 4-Port VNAs
Previous
• RESPONSE Menu – 4-Port VNAs
Prerequisites
• The VNA must be in 4-Port Mode
Navigation
• MAIN | Response | RESPONSE | Single-Mode | SINGLE-MODE
SINGLE-MODE Menu – 4-Port VNAs 
S13
Select sets S-Parameter to S13.
S14
Select sets S-Parameter to S14.
S23
Select sets S-Parameter to S23.
S24
Select sets S-Parameter to S24.
S31
Select sets S-Parameter to S31.
S32
Select sets S-Parameter to S32.
S33
Select sets S-Parameter to S33.
S34
Select sets S-Parameter to S34.
S41
Select sets S-Parameter to S41.
S42
Select sets S-Parameter to S42.
S43
Select sets S-Parameter to S43.
S44
Select sets S-Parameter to S44.