To Set The Hold; To Set The Trace Math For Trace C - HP 86140A Series User Manual

Using the Optical Spectrum Analyzer
The Traces Menus
To set the Hold.... function
1 Press the front-panel Traces key.
2 Press the Hold <trace>.... softkey to select None, Min or Max.
None turns the Hold function off.
The maximum hold function compares the current amplitude value of each
point on a trace in the current sweep to the corresponding point detected dur-
ing the previous sweep, then displays the maximum value.
The minimum hold function compares the current amplitude value of each
point on a trace in the current sweep to the corresponding point detected dur-
ing the previous sweep, then displays the minimum value.
Pressing the Max/Min Reset softkey resets the hold function to the last acquired
trace. Subsequent traces are accumulated in the hold sequence.

To set the trace math for trace C

1 Press the front-panel Traces key.
2 Press the Trace Math.... softkey.
3 Press the Default Math Trace C.... softkey to define the math expression to be used
when the math operations are turned on. The result is placed in Trace C.
4 Select the appropriate softkey to define the math expression.
C=A
Defines the math expression to be used and turns the math operation
math operation is performed in linear units.
Trace C Math Off
Determines whether or not math processing is performed.
3-58
–B, C=A +B, C=A
LOG LOG
–B, C=A +B
LIN LIN
. The
ON