102 Keysight N9927-90001 User’s Guide
NA (Network Analyzer) Mode
NA Mode Settings
— With S11 and S22 reflection measurements, the FieldFox doubles the port
extension valued that you enter to account for the additional delay in the
forward and reverse directions.
— With S21 and S12 transmission measurements, the port 1 and port 2
extensions are added together. This accounts for the total transmission
delay going through ports 1 and 2.
Port extensions and Electrical Delay differ in the following ways:
— Electrical delay applies to a specific trace
— Port extensions apply to specific hardware ports
Port Extensions and Electrical Delay can be set independently. When both are
set, the delay adds together. Learn more about Electrical Delay in
.
How to apply Port Extensions
— Press
Meas Setup 4
.
— Then
Port Extensions
— Then
Port Extensions ON
— Then
Port1 Extension
— Then enter time value using the numeric keypad, the
arrows, or the
rotary knob. Press
Enter
or select a seconds (time) multiplier.
You can also set Port Extensions by pressing
Meas Setup 4
then
Calibration
(settings).
While setting Port Extension, the physical length of the extension, at the
current Velocity Factor setting, is visible to the right (red box in above
image).
Velocity Factor
The electrical delay or port extension value is entered as delay, or
electrical
length
, in units of time.
Entering the velocity factor causes the FieldFox to accurately display the
equivalent
physical length
in meters (NOT available in feet) that corresponds
to the entered electrical delay.
Содержание N9913A
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Страница 106: ...106 Keysight N9927 90001 User s Guide NA Network Analyzer Mode NA Mode Settings ...
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