Keysight Technologies C Series - Electrical Delay; Phase Offset

Keysight N9915-90020 User’s Guide 101
NA (Network Analyzer) Mode
NA Mode Settings
— Then Magnitude Offset - Offsets the entire data trace by the
specified value.
— Then enter a positive or negative offset value in dB using
the numeric keypad, the arrows, or the rotary knob.
Press a multiplier key. Learn about multiplier
abbreviations.
— And/or press Slope
- Offsets the data trace by a value that changes
linearly with frequency. The offset slope begins at 0 Hz. and
continues to the stop frequency. The offset value at the start
frequency is then calculated from 0 Hz.
— Then enter a positive or negative offset slope value in
dB/GHz using the numeric keypad, the arrows, or the
rotary knob. Press a multiplier key. Learn about multiplier
abbreviations in
“Multiplier Abbreviations” on page 46.
Electrical Delay
Electrical delay is a mathematical function that simulates a variable length of
lossless transmission line. Use the electrical delay feature to compensate for
the linear phase shift through a device and view only the deviation from linear
phase of the device.
You can set the electrical delay independently for each measurement trace. To
apply an electrical delay to all measurement traces, use Port Extensions. Learn
how in
“Port Extensions” on page 108.
Learn how to set Phase formats in
“Phase Offset” on page 101.
How to set Electrical Delay
1. Press Scale / Amptd
> More > Electrical Delay
2. Enter a time value using the numeric keypad, the arrows, or the
rotary knob.
3. Press a multiplier key. Learn about multiplier abbreviations in
“Multiplier
Abbreviations” on page 46
.
Electrical Delay can also be set using the Mkr->Delay feature. Learn how on
“Marker Functions” on page 747.
Phase Offset
Phase offset mathematically adjusts the phase measurement by a specified
amount, up to 360°. Use this feature in the following ways:
Improve the display of a phase measurement. This is similar to the way you
would change the acquisition in an amplitude measurement. Change the
phase response to center or the response on the screen.