Language Reference

APBDCTL

Performs trace math DL * (A+B) / C 7 A with each sweep.

 

 

Item

 

 

Description

 

Preset State

 

APBDCTL

OFF

Example

120

OUTPUT

723;"SNGLS;"

Activate single-sweep mode.

 

130

OUTPUT

723;"LN;"

Select linear amplitude scale .

 

140

OUTPUT

723;"TS;VIEW TRA;"

Sweep trace A and store it.

 

150

OUTPUT

723;"APBDCTL;"

 

Description The APBDCTL command requires a linear display mode. It multiplies the sum of traces A and B by the display line. Then, this result is divided by trace C.

The ￿nal results are stored in trace A. If trace A is in clear-write mode, the function is continuous and occurs every sweep.

This command allows ratio measurements to be made as a sweep is taken. If trace B has points near the bottom of screen, over￿ow or poor precision can occur. If a division by zero is attempted, a division by the smallest representable value will be performed instead.

To ensure that correct data is displayed, be sure that a sweep is taken before using this command. Only one trace math operation may be active at any given time.

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