Improving Phase Measurement Accuracy; Electrical Delay - Agilent Technologies E5071C Manual

E5071C

Improving Phase Measurement Accuracy

This section describes the following functions that can be used to improve
phase measurement accuracy.

Electrical Delay

•
Velocity Factor
•
Phase Offset
•
Port Extensions and Loss Values
•
Other topics about Optimizing Measurements
Electrical Delay
Electrical Delay is a function that adds or removes a pseudo-lossless
transmission line with a variable length corresponding to the receiver
input. Using this function enables you to improve the resolution in phase
measurement and thereby measure deviation from the linear phase. You
can specify the electrical delay trace by trace. Depending on the media
type, the calculation method of the electrical delay, which is required to
correct the phase delay, differs.
1. Press
Channel Next/Channel Prev
to activate the phase trace for which you want to specify the
electrical delay.
2. Press
Scale
3. Click Electrical Delay.
4. Change the electrical delay (in seconds) in the data entry area.
5. Click Media, and select a media type for calculating the electrical
delay. If the electrical delay is 0 second, the calculation result is
always the same regardless of media type.
Softkey
Coaxial
Waveguide
6. If you have selected Waveguide as the media type, click Cutoff
Frequecy, and specify a cutoff frequency.
7. The cutoff frequency is available only when the media type is
Waveguide.
370
key.
Function
Selects Coaxial as the media type.
Selects Waveguide as the media type.
keys and
Trace Next/Trace prev
keys