Vector Network Analyzer Measurement Guide : VNA View Menus : Measurement Menus : Sweep Menu — MS20xxB and S412E
 
Sweep Menu — MS20xxB and S412E
Sweep Menu
Run/Hold
Run Hold
Press this soft key to toggle the sweep to Run or Hold.
Sweep Type
Single Cont
Press this soft key to toggle the sweep type to Single or Continuous. Single sweep sets the VNA Master to make a single sweep and then wait for additional commands. The Continuous mode sweeps continuously.
Data Points
Press this soft key to set the number of data points from 2 to 4001.
IFBW
Press this soft key to open a list box and set the Intermediate Frequency bandwidth. The default is 10 kHz. Select 10 Hz for the maximum dynamic range, and select 100 kHz for the maximum speed.
Sweep Averaging
Press this soft key to set the number of sweeps to use for averaging. The minimum number is 1.
Configure Ports
Press this soft key to open the Configure Ports Menu.
Dithering
On Off
Press this soft key to toggle On and Off the Dithering function. When a signal is dithered, a mathematical process removes the harmonics or other undesirable distortions, and replaces these distortions with a constant, fixed noise level. The result is a better representation of the signal.
RF Pwr in Hold
On Off
Press this soft key to toggle On and Off the condition of the RF power transmitted from Port 1 and Port 2 when the instrument is put in Hold mode. The RF power can be set either to stay on or to be turned off during Hold. The default setting is for the RF to stay on during Hold, which helps to stabilize the instrument temperature.
To access the Sweep Menu, press the Sweep function hard key or press the Shift key then the Sweep (3) key. All of the variables that affect the sweep can be found in this menu.
 
Configure Ports Menu
Access to this menu is from the Configure Ports soft key in the Sweep Menu — MS20xxC.
Configure Ports Menu
Auto Reference Plane Extension
Press this soft key to use the active trace data to automatically determine the best length to mathematically extend the reference plane (plane of calibration) in order to remove cable length from the measurement, based on the current value of Propagation Velocity (refer to the description for the Propagation Velocity soft key). The resultant display will “unwrap” phase displays to allow a better view of the phase properties of the DUT.
Port 1 Ref Plane Length
Press this soft key to manually enter a distance to which the Reference Plane (Plane of Calibration) is extended. This action calculates and removes (from the measurement data) an appropriate amount of linear phase rotation based on Propagation Velocity and the distance that is entered here.
Port 2 Ref Plane Length
Press this soft key to enter reference plane extension distance for Port 2 (full-reversing, two‑port VNA instruments only).
DUT Line Type
Press this soft key to toggle the line type to coaxial cable or to waveguide.
Propagation Velocity
This value is used by the Reference Plane Extension functions. Press this soft key to enter the propagation velocity of electrical signals in the length of cable that is being removed by the Reference Plane Extension calculations. Values are expressed as a decimal ratio compared to the speed of light in a vacuum (examples: 1 = speed of light, and 0.5 = 1/2 the speed of light).
Bias Tee Setup
Press this soft key to open the Bias Tee Setup Menu.
Source Power
Back
Press this soft key to return to the Sweep Menu — MS20xxC.