Rigol DSA1030, Руководство пользователя

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Front Panel Key Reference RIGOL
User’s Guide for DSA1000 Series 2-77
2.5.1.1 Select Mkr
Selects one marker from the four, the default is Marker1. When a selection is made,
you can set its type, trace to be marked, readout type and other related parameters.
The enabled marker will appear on the selected trace through the Mkr Trace option,
and the readouts of this marker are also displayed on the active area and the upper
right of screen.
Table 2-56 Marker parameters
Parameter Explanation
Default Center Frequency
Range 0 to 3 GHz
Unit Readout = Frequency (or Period), Unit is GHz, MHz, kHz,
Hz (or ks, s, ms, us, ns, ps);
Readout = ΔTime (or 1/Δtime), Unit is ks, s, ms, us, ns, ps
(or GHz, MHz, kHz, Hz)
Knob Step*
Readout = Frequency (or Period), step =
Span/[Min( Sweep Points, Number of Pixels in the Grid
Area**) -1];
Readout = ΔTime (or 1/Δtime), step = Sweep
Time/[Min( Sweep Points, Number of Pixels in the Grid
Area) -1]
Direction Key Step Readout = Frequency (or Period), step = Span/10;
Readout = ΔTime (or 1/Δtime), step = Sweep Time/10
Note:
*The knob step must be an integral multiple of the difference between two adjacent points. If the
result calculated using the equation in the table above does not meet this requirement, the value
which meets the requirement and is closest to the calculated result is selected automatically as the
knob step. For example, if the readout type is frequency, the span is 3 GHz, and the number of pixels
in the grid area is 601, step=3 GHz/(601-1) = 5 MHz. At this point, the frequency difference between
two adjacent points is 3 GHz/(2001-1) = 1.5 MHz. Thus, the real step is 4.5 MHz which is three times
of 1.5 MHz and is closest to 5 MHz.
**The number of pixels in the grid area is 751 in full screen and 601 in non-full screen mode.