 | Amplitude Resolution Per Div Press this submenu key to set the number of units that are displayed between horizontal vertical graph lines. Units depend upon frequency, time, and distance settings. Use the Up/Down Arrow keys, the keypad, or the rotary knob to set this parameter, then press the Enter key to complete the entry. Reference Value Press this submenu key to set the value of the Reference Line. Use the Up/Down Arrow keys, the keypad, or the rotary knob to set this parameter, then press the Enter key. Reference Line: Press this submenu key to set which horizontal graph is at the reference value. The reference line is indicated by a small colored triangle along the right edge of the graph. Use the Up/Down Arrow keys, the keypad, or the rotary knob to set this parameter, then press the Enter key. Autoscale Press the Autoscale submenu key to automatically adjust the Resolution Per Div and Reference Value so that the trace for the current measurement is shown in the middle of the display. Scale Preset: Scale Preset automatically sets the scale to the default setting: Log Mag: Res/Div = 10 dB, Ref Val = 0 dB SWR: Res/Div = 1, Ref Val = 1 Phase: Res/Div = 45 deg, Ref Val = 0 Real/Imag: Res/Div = 0.2, Ref Val = 0 Impedance: Res/Div = 10 ohm, Ref Val = 50 ohm Group Delay: Res/Div = 1 ns, Ref Val = 0 ns; Ref. Impedance 50 Ω 75 Ω Sets the reference impedance that is used for Smith Chart calculations to either 50 Ω or 75 Ω. The reference impedance determines the value of impedance at the center of the Smith Chart. This submenu key is displayed only when a Smith Chart trace is active. |