Boonton 4530 Peak Power Meter User Manual - Manual (Page 103)

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Boonton Electronics Chapter 4
4530 Series RF Power Meter Remote Operation
MARKer:POSition:TIMe
Description: Set or return the time (position) of the selected vertical marker relative to the trigger. Note
that time markers must be positioned within the time limits of the trace window in the graph
display. If any attempt is made to position them outside these limits, they will be forced
back into the range of the trace window. Note that if timespan, trigger delay, or trigger
position settings are changed, the marker positions on the graph display will remain un-
changed, but their times relative to the trigger will change. For this reason, it is a good idea
to set all timing and trigger parameters before setting the marker times.
Syntax: MARKer:POSition[1|2]:TIMe <n>
Argument: <n> = +/- ### seconds (see restrictions)
Valid Modes: Pulse mode only. MARKer:MODe must be VERT.
Restrictions: TrigDly - (TimeSpan / 2) < MarkerTime < TrigDly + (TimeSpan / 2)
MARKer:POSition:PERcent
Description: Set or return the percent probability (position) of the selected vertical marker. Note that the
power value returned for each marker will depend on the setting of
CALCulate:MODe .
When set to CDF, the highest power levels are towards the right side of the screen, with
maximum (highest peak) power occurring at 100%. When set to CCDF (also called 1-CDF),
the highest levels are towards the left, with peak power at 0%.
Syntax: MARKer:POSition[1|2]:PERcent <n>
Argument: <n> = 0.000 to 100.000 %
Valid Modes: Statistical mode only. MARKer:MODe must be VERT.
4.5.9 DISPlay Subsystem
The DISPlay group of commands is used to control the selection and presentation of textual, graphical and TRACe
measurements. With one exception (
DISPlay:TSPAN ), the DISPlay commands are independent of, and do not modify,
how data is returned to the bus controller. But since it does configure the measurement data presentation on the front
panel LCD, DISPlay can be considered an optional third and final block in a signal-flow block diagram of the power
meter. Text (TXT1, TXT2, TXTB) or graph (GRPH1, GRPH2, GRPHB) display modes may be selected with either or both
channels visible. When the power meter is in text mode, reading resolution and bargraph visibility may be configured.
In graph mode, waveform scaling and centering are set. Note that in the special case of
DISPlay:TSPAN , the setting
of the display timespan may effect what portion of a pulse waveform can be measured; measurements may only be
performed on the portion of the trace falling within the left and right limits of the display window. These same
restrictions apply even when the power meter is in TEXT mode and the trace is not displayed.
DISPlay:%SPAN
Description: Set or return the horizontal trace display span in statistical percent. The power meter has
fixed display range settings in a 1, 2, 5 sequence, and if the argument does not match one of
the settings, it will be forced to the next highest entry.
Syntax: DISPlay:%SPAN <n>
Argument: <n> = 1, 2, 5, 10, 20, 50, 100 %
Valid Modes: Statistical mode only
Restrictions: The sum of %SPAN and %OFST must not be greater than 100%.