NA (Network Analyzer) Mode 45
o Ref Level Manually set the value of the reference line. Enter a negative
value by pressing Run/Hold (+/-) either before or after typing a value.
o Ref Position Manually set the position of the reference line. Values must be
between 0 (TOP line) and 10 (BOTTOM line)
Scale annotation on the
FieldFox screen
· Reference Line = red
arrow
· Ref Level = –40 dB
· Ref Position = 1
· Scale = 2 dB per division
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 on page 50.
Phase is available only with S11 measurements – NOT S21.
Learn how to set Phase formats on page 43.
How to set Electrical Delay
Press Scale / Amptd
Then More
Then Electrical Delay
Enter a time value using the numeric keypad, the ▲|▼ arrows, or the rotary
knob.
Press a multiplier key. Learn about multiplier abbreviations on page 19.
Electrical Delay can also be set using the Mkr->Delay feature. Learn how on page
144.
Phase Offset
Phase format is available only with S11 measurements. Learn more on page 43.
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 reference level in an amplitude measurement. Change the
phase response to center or align the response on the screen.
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