Stanford Research Systems SR785, Руководство по эксплуатации и программированию

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Waterfall Menu 4-139
SR785 Dynamic Signal Analyzer
The View Count and the Trace Height determine the available scroll angles. When Fast
Angles is On, the available scroll angles are limited to those which scroll faster (due to
the graphics architecture). This menu box sets the requested scroll angle. The display
scrolls at the allowed angle closest to the requested angle. When adjusted with the knob,
only available angles are selected.
Each display has its own Waterfall Scroll Angle. This entry field can be linked to both
displays by using the [Link] key.
Command: WANG (?) d {, i}
Marker to Z
Move the marker to a specified record within the waterfall buffer in the active display.
Storage must be on to move to records other than the most recent (record 0). Enter a
record number (starting from 0 as the most recent) and press [Enter]. The waterfall
display will re-draw to include the specified record number.
[Alt] knob also moves the marker from record to record (along the Z axis) and scrolls the
display through the waterfall buffer. <Marker to Z> is a faster way to move to an
arbitrary record.
The marker position along the Z axis is displayed in the Marker Position Bar next to the
marker frequency or time. The Z axis position is the record number starting from 0 (most
recently stored at the back of the waterfall).<Record to Trace> saves the record selected
by the marker to a Trace.
Command: MWFL d, i
Allocate Memory
Display the Memory Allocation menu.
Total Available
Displays the total memory available for storage, either 980, 2004 or 4022 blocks,
depending upon the amount of installed memory. Each block is 2 kPoints (2048 points).
The total of the Capture, Waterfall and Arbitrary memory allocations cannot exceed the
Total Available memory. It may be necessary to decrease one allocation in order to
increase another.
Command: MMEM ?
Capture Memory
Allocates memory blocks for the capture buffer. The allocated Capture Memory sets the
limit for the Capture Length. Capture memory must be allocated before the capture
buffer may be used.