Freq/Dist Menu

S820E Microwave Site Master™ User Guide : VNA Mode : Freq/Dist Menu

Freq/Dist Menu

Key Sequence: Freq/Dist > Frequency or Distance

Frequency/Distance Menu (1 of 2)
	Frequency Start Frequency (F1) Press the Start Frequency (F1) submenu key and enter the desired frequency using the Up/Down Arrow keys, the rotary knob, or the keypad. Press Enter to complete the entry or, if entering a frequency using the keypad, press the appropriate units key. Stop Frequency (F2) Press the Stop Frequency (F2) submenu key and enter the desired frequency using the Up/Down Arrow keys, the rotary knob, or the keypad. Press Enter to complete the entry or, if entering a frequency using the keypad, press the appropriate units key. Distance Start Distance (D1) Press the Start Distance submenu key and enter the desired distance using the Up/Down Arrow keys, the rotary knob, or the keypad. Press Enter to complete the entry or, if entering a distance using the keypad, press the appropriate units key. Stop Distance (D2) Press the Stop Distance submenu key and enter the desired distance using the Up/Down Arrow keys, the rotary knob, or the keypad. Press Enter to complete the entry or, if entering a distance using the keypad, press the appropriate units key. Units Press the Units key to toggle distance units between meters and feet. DTF Aid Opens the DTF Aid dialog box (see Figure: DTF Aid). This interactive parameter box allows setting multiple parameters and displays maximum testing distance and resolution.

Freq/Dist Menu (Continued)

Key Sequence: Freq/Dist

Frequency/Distance Menu (2 of 2)
	DTF Setup DUT Line Type (Coax WG) Press this submenu key to toggle the line type between Coaxial cable and Waveguide. See Figure: Waveguide Submenu Keys for the waveguide submenu keys. Cable List The Cable List submenu key opens a list of available cable specifications. Using Up/Down Arrow keys, the rotary knob, or the touchscreen, select the desired cable and press Enter. See Figure: Cable and Waveguide List Boxes for an example of the cable and waveguide lists. Note: When a cable is selected from this list, propagation velocity and cable loss are automatically set by the instrument. If the preselected values for propagation velocity or cable loss are changed, then the analyzer will use “NONE” as the cable type. Cable Loss Press the Cable Loss (or Waveguide Loss) submenu key and enter the loss in dB/ft or dB/m for the selected cable (or Waveguide) by using the keypad, Up/Down Arrow keys, or the rotary knob, and then press Enter. Prop Velocity Press the Prop Velocity submenu key and enter the applicable propagation velocity for the selected cable by using the keypad, Up/Down Arrow keys, or the rotary knob, and then press Enter. Cutoff Freq Press this waveguide submenu key and enter the applicable cutoff frequency in Hz for the selected waveguide by using the keypad, Up/Down Arrow keys, or the rotary knob, and then press Enter. See Figure: Waveguide Submenu Keys for the waveguide submenu keys. Windowing Opens the Windowing Menu.

DTF Setup for Waveguide

When the DUT line type is WG (waveguide), the coaxial cable submenu keys are changed to waveguide submenu keys.

Waveguide Submenu Keys

Cable and Waveguide List Boxes

Cable and Waveguide List Boxes

Windowing Menu

Key Sequence: Freq/Dist > DTF Setup > Windowing

Windowing Menu
	Windowing Rectangular Rectangular Windowing shows the highest side lobe levels (worst) and the greatest main lobe resolution (best). Nominal Side Lobe Nominal Side Lobe Windowing shows less side lobe levels than Rectangular Windowing (good) but lower main lobe resolution (very good). Low Side Lobe Low Side Lobe Windowing shows less side lobe levels than Nominal Windowing (very good) but lower main lobe resolution (good). Minimum Side Lobe Minimum Side Lobe Windowing shows the lowest side lobe levels (best) but the least main lobe resolution (worst).