Frequency

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.

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

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.

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.

Press the Units key to toggle distance units between meters and feet.

Opens the DTF Aid dialog box (Figure: DTF Aid). This interactive parameter box allows setting multiple parameters and displays maximum testing distance and resolution.

DTF Setup

The Cable List submenu key opens a list of available cable specifications (Figure: Cable List Selection Displayed Under the Graph). Using Up/Down Arrow keys, the rotary knob, or the touchscreen, select the desired cable and press Enter.

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.

Press the Cable Loss submenu key and enter the loss in dB/ft or dB/m for the selected cable using the keypad, Up/Down Arrow keys, or the rotary knob and press Enter.

Press the Prop Velocity submenu key and enter the applicable propagation velocity for the selected cable using the keypad, Up/Down Arrow keys, or the rotary knob and press Enter.

Opens the Windowing Menu.

 

 

 

 

Rectangular Windowing shows the highest side lobe levels (worst) and the greatest main lobe resolution (best).

Nominal Side Lobe Windowing shows less side lobe levels than Rectangular Windowing (good) but lower main lobe resolution (very good).

Low Side Lobe Windowing shows less side lobe levels than Nominal Windowing (very good) but lower main lobe resolution (good).

Minimum Side Lobe Windowing shows the lowest side lobe levels (best) but the least main lobe resolution (worst).