HP ESA-L1500A, User'S And Calibration Manual

Page: 113 / 326

112 Chapter 4
Front-Panel Key Reference
Trace
Clear Write C
erases any data previously stored in trace C and continuously displays
any signals detected during the sweep of the spectrum analyzer.
Changing the trace mode of trace C to clear write or minimum hold can
change the trace mode of trace A and trace B. If trace A or trace B is in
clear-write mode or maximum-hold mode when trace C is changed to
clear write or minimum hold, the trace mode of trace A or trace B is
changed to store blank. The following table shows the trace mode of
trace A or trace B before and after changing trace C to clear-write or
minimum-hold trace mode.
If you want to use trace A or trace B in the clear-write or
maximum-hold mode and do not want trace C to blank it, use
minimum-hold or view-trace mode for trace C. Key Access:
Trace
Max Hold A or B
maintains the maximum level for each trace point of the selected trace
(A or B), and updates each trace point if a new maximum level is
detected in successive sweeps. Key Access:
Trace
Min Hold C
maintains the minimum level for each trace point of trace C, and
updates each trace point if a new minimum level is detected in
successive sweeps. Key Access:
Trace
View A, B, or C
holds and displays the amplitude data of the selected trace. The trace
register is not updated as the spectrum analyzer sweeps. If trace A is
deactivated by pressing
Blank A
, the stored data can be retrieved by
pressing
View A
. Key Access:
Trace
Blank A, B, or C
stores the amplitude data for the selected trace, and removes it from
the display. The selected trace register will not be updated as the
spectrum analyzer sweeps. Key Access:
Trace
Trace Mode of Trace A or
B Before
Trace Mode of Trace A or
B After
Clear write Blank
Maximum hold Blank
View View