6-28 PN: 10580-00343 Rev. H S820E UG
6-9 Amplitude Menu VNA Mode
6-9 Amplitude Menu
Key Sequence: Amplitude
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.
Figure 6-19. Amplitude Menu
Resolution Per
Div
Reference
Value
Autoscale
Amplitude
Scale Preset
Reference
Line
Ref. Impedance
Ref. Impedan
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