Rigol DSA1030, Руководство пользователя

Страница: 135 / 287

Front Panel Key Reference RIGOL
User’s Guide for DSA1000 Series 2-81
2. Period
In this type, Normal marker shows the reciprocal value of frequency and Delta
marker, Delta Pair marker and Span Pair marker show the reciprocal value of
frequency difference. When the frequency difference is zero, the displayed value
is infinite (with 10 Ts displaying). Note this type is invalid in Zero span mode.
3. ΔTime
In this type, Normal marker shows the time difference between where the
marker is located and the start of the sweep, while Delta marker, Delta Pair
marker and Span Pair marker show the sweep time difference between the
Delta Marker and Reference Marker.
The default readout in Zero span mode is ΔTime.
4. 1/ΔTime
In this type, the reciprocal value of sweep time difference between the Delta
Marker and Reference Marker will be shown. When the time difference is zero, the
displayed value is infinite (with 100THz displaying). Note this type is available
only in Zero span mode when a Delta type marker is selected and suitable for the
frequency measurement of a video signal.
2.5.1.9 Marker Table
Displays all the opened markers on the lower portion of the screen, including Marker
number (D represents normal marker or Delta marker, R represents Reference
marker), Trace number, Marker readout type, X-axis, and Amplitude readout. Through
this table you can view the measured value from multiple points. The table allows for
up to eight markers to be displayed at one time. Pressing
to select the readout
window and turning the knob to view the readouts of all the markers.