Chapter 4 — Spectrum Analyzer 4-33 Trace
MS20xxA VNA Master UG 10580-00166 Rev. C 4-63
Max Hold -> C
The trace shows the cumulative maximum value of each display point over many
sweeps
Min Hold -> C
The trace shows the cumulative minimum value of each display point over many
sweeps.
A - B -> C
Subtracts the value of trace B from trace A and places the results in Trace C.
This function is very useful for observing the changes in values of live Trace A
compared to a trace stored in Trace B. When trace math is active, a relative scale
shows on the right side of the graph, and is applied to Trace C. This allows the
user to optimize the display of Trace C without affecting the display of Traces A
and B.
B - A -> C
Subtracts the value of Trace A from Trace B and places the results in Trace C.
This function is very useful for observing the changes in values of live Trace A
compared to a trace stored in Trace B. When trace math is active, a relative scale
shows on the right side of the graph, and is applied to Trace C. This allows the
user to optimize the display of Trace C without affecting the display of Traces A
and B.
Relative Ref #dB
Sets the value applied to the top graticule for the relative scale that appears on
the right side of the graph when trace math is active. Change this value by using
the rotary knob, Up/Down arrows, or entering the value on the numeric keypad
and pressing the dB soft key or the Enter key. This entry is valid only when trace
math is active
Rel Scale, # dB/div
Sets the value applied to the scaling of the relative scale that appears on the
right side of the graph when trace math is active. Change this value by using the
rotary knob, Up/Down arrows, or entering the value on the numeric keypad and
pressing the dB soft key or the Enter key.
This entry is valid only when trace math is active.
10580-00166C.book Page 63 Thursday, February 21, 2008 12:52 PM
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