VectorStar™ MS4640A Series Microwave Vector Network Analyzers : Power Menus - 2-Port VNAs : POWER CAL Menu Variants
 
POWER CAL Menu Variants
The POWER CAL menu is available in two variants depending on the Sweep Type set in the SWEEP TYPE menu.
SWEEP TYPE Menu
• Sweep Setup and Sweep Type Menus
• MAIN | Sweep Setup | SWEEP SETUP | Sweep Types | SWEEP TYPES
POWER CAL Non-Power Menus
The POWER CAL Frequency-Based Sweep and the POWER CAL Segment-Based Sweep menus are the same. Both menus have six (6) buttons of: Port Selection, Port Cal, Target Power (dBm), Perform Cal, Save Cal, and Recall Cal. This menu is available if Sweep Type is set to:
• Freq Sweep (Linear)
• Freq Sweep (Log)
• Segmented Sweep (Freq-based)
• Segmented Sweep (Index-based)
• POWER CAL Menu - Frequency-Based Sweep - 2-Port VNAs
POWER CAL Power-Based Menus
The POWER CAL Power-Based Sweep menu is different with seven (7) buttons of: Port Selection, Port Cal, Target Start Power (dBm), Target Stop Power (dBm), Perform Cal, Save Cal, and Recall Cal. This menu is available if Sweep Type is set to:
• Power Sweep (CW Freq)
• Power Sweep (Swept Freq)
• POWER CAL Menu - Power-Based Sweep - 2-Port VNAs
POWER CAL Menu - Frequency-Based Sweep - 2-Port VNAs
POWER CAL Menu - Segment-Based Sweep - 2-Port VNAs
Previous
• POWER Menu - Frequency-Based Sweep - 2-Port VNAs
• POWER Menu - Segment-Based Sweeps - 2-Port VNAs
Navigation
• MAIN | Power | POWER | Power Cal | POWER CAL
Both menus are identical.
POWER CAL Menu - Non-Power Sweep Modes - 6 Buttons 
POWER CAL 6-Button Menu
Available if a non-power sweep mode of Frequency-Based Sweep or Index-Based Sweep is selected.
Port Selection (Port 1/Port 2)
The Port Selection button toggles the port selection between Port 1 and Port 2.
Power Cal (Off/On)
If a successful power calibration has not been completed, the button is unavailable. If a prior successful power calibration has been complected, the toggle button is available and allows the user to toggle the power calibration off and on.
Target Power (dBm)
Select displays the Target Power field toolbar and allows the user to enter power levels in dBm.
Perform Cal
Starts the power calibration routine and displays the POWER CALIBRATION dialog box. When the calibration is successfully completed, the Save Cal button (below) and the Power Cal (Off/On) button (above) are available.
Save Cal
If a successful power calibration has not been completed, the button is unavailable. The Save Cal button is available after a successful power calibration (above). If the sweep mode is set to a frequency sweep, select displays the SAVE AS (FREQUENCY SWEEP POWER CAL.fpc FILE) dialog box.
Recall Cal
The Recall Calibration (Recall Cal) button allows a prior saved calibration to be recalled. As above, if the sweep mode is set to a frequency sweep, select displays the OPEN (FREQUENCY SWEEP POWER CAL.fpc FILE) dialog box. If the sweep mode is set to a power sweep, select displays the OPEN (POWER SWEEP POWER CAL.ppc FILE) dialog box.
POWER CAL Menu - Power-Based Sweep - 2-Port VNAs
Previous
• POWER Menu - Power-Based Sweeps - 2-Port VNAs
Navigation
• MAIN | Power | POWER | Power Setup | POWER SETUP | Power Cal | POWER CAL
 
POWER CAL Menu - Power Sweep Modes - 7 Buttons
POWER CAL 7-Button Menu
Available if Power Sweep (CW Frequency) or Power Sweep (Swept Frequency) is selected.
Port Selection (Port 1/Port 2)
The Port Selection button toggles the port selection between Port 1 and Port 2.
Power Cal (Off/On)
If a successful power calibration has not been completed, the button is unavailable.
If a prior successful power calibration has been complected, the toggle button is available and allows the user to toggle the power calibration off and on.
Target Start Power (dBm)
Select displays the Target Start Power field toolbar and allows the user to enter power levels in dBm.
Target Stop Power (dBm)
Select displays the Target Start Power field toolbar and allows the user to enter power levels in dBm.
 
Perform Cal
Starts the power calibration routine and displays the POWER CALIBRATION dialog box. When the calibration is successfully completed, the Save Cal button (below) and the Power Cal (Off/On) button (above) are available.
Save Cal
If a successful power calibration has not been completed, the button is unavailable.
The Save Cal button is available after a successful power calibration (above).
If the sweep mode is set to a power sweep, select displays the SAVE AS (POWER SWEEP POWER CAL.ppc FILE) dialog box.
Recall Cal
The Recall Calibration (Recall Cal) button allows a prior saved calibration to be recalled.
As above, if the sweep mode is set to a frequency sweep, select displays the OPEN (FREQUENCY SWEEP POWER CAL FPC FILE) dialog box. The dialog box is similar to the dialog box below:
 
POWER CALIBRATION (PORT 1/PORT 2) Dialog Box
 
Previous
• POWER CAL Menu - Frequency-Based Sweep - 2-Port VNAs
Navigation
• MAIN | Power | POWER | Power Cal | POWER CAL | Perform Cal | POWER CALIBRATION (PORT 1/PORT 2) Dialog Box
 
POWER CALIBRATION (PORT 1/PORT 2) Dialog Box
 
Overview
Power calibration in power sweep adjusts the source output power for the frequency specified over the power sweep range to provide a linear power level as the calibration plane.
 
Instructions
1. Preset, Zero, and Calibrate the power meter.
2. Connect the power meter to the dedicated GPIB interface, and the power sensor to Port 1.
3. Select Start Cal to perform the calibration.
4. Click Close to return. Click Abort Cal to end calibration session.
 
OPEN (POWER SWEEP POWER CAL PPC FILE) Dialog Box
If a power sweep is set, recalling a prior calibration from the Power Cal menu displays this dialog box. If a frequency sweep is set, recalling a prior calibration displays the similar Open (FREQUENCY SWEEP POWER CAL FPC FILE) dialog box.
Previous
• POWER CAL Menu - Frequency-Based Sweep - 2-Port VNAs.
Navigation
• MAIN | Power | POWER | Power Cal | POWER CAL | Recall Cal | OPEN (POWER SWEEP POWER CAL PPC FILE) Dialog Box
 
OPEN (POWER SWEEP POWER CAL PPC FILE) Dialog Box
 
Overview
Allows the user to find, open, and recall a power sweep power calibration PPC file.
Instructions
1. Navigate to the location of a previously stored PPC file.
2. Click Open to recall the file.
3. Click Close to return or Cancel to end recall session.
 
 
SAVE AS (FREQ. SWEEP POWER CAL FPC FILE) Dialog Box
Full Name
• SAVE AS (FREQUENCY SWEEP POWER CALIBRATION FPC FILE) Dialog Box
Previous
• POWER CAL Menu - Frequency-Based Sweep - 2-Port VNAs
Navigation
• MAIN | Power | POWER | Power Cal | POWER CAL | Save Cal | SAVE AS (FREQUENCY SWEEP POWER CAL FPC FILE) Dialog Box
 
SAVE AS (SWEEP POWER CAL FILE) Dialog Box
At left, Save as Frequency Sweep Power Cal FPC Files
At right, Save As Power Sweep Power Cal (PPC) Files
 
SAVE AS (POWER SWEEP POWER CAL PPC FILE) Dialog Box
 
Previous
• POWER CAL Menu - Frequency-Based Sweep - 2-Port VNAs
Navigation
• MAIN | Power | POWER | Power Cal | POWER CAL | Save Cal | SAVE AS (POWER SWEEP POWER CAL PPC FILE) Dialog Box
Figure
• Figure: SAVE AS (SWEEP POWER CAL FILE) Dialog Box