Language Reference

AMBPL

AMBPL

Performs trace math A 0 B + DL 7 A with each sweep.

 

 

Item

 

Description

 

 

 

Preset

State

 

AMBPL

OFF

 

 

 

Example

40

OUTPUT

723;"SNGLS;"

Activate single-sweep mode.

 

50

OUTPUT

723;"LG 5DB;"

Select logarithmic

scale.

 

60

OUTPUT

723;"TS;VIEW TRA;"

Measure

with trace

A and store results .

 

70

OUTPUT

723;"RL -10DBM;"

Change reference level to 10 dBm.

 

80

OUTPUT

723;"CLRW TRB;TS;"

Measure with trace B.

 

90

OUTPUT

723;"DL -10DBM;"

Set display line to 010 dBm.

 

100 OUTPUT

723;"AMBPL ON;"

Subtract

trace B from trace A, then add

 

 

 

 

 

display

line.

 

 

Description The AMBPL command subtracts trace B from trace A, point by point, adds the display line to the di￿erence, then stores the result in trace A. When

AMBPL is executed, trace B is placed in view mode and cannot be swept. If trace A is in clear-write mode when AMBPL is executed, the AMBPL function is continuous and occurs every sweep. The AMBPL command overrides the AMB command. Be sure each trace contains a complete sweep of measurement information.

This function is e￿ective when wanting to place the results of trace subtraction at a speci￿c location. Placing the optical spectrum analyzer in single sweep mode allows you to view the results of the trace math. Trace math is mainly used to normalize the display during stimulus-response measurements.

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