Language Reference

SUB

 

Item

 

 

Description

 

 

 

Source-Amplitude Range

 

0 { 10,000 measurement units

for

linear trace data in

TRA, TRB , TRC,

 

 

 

trace range , or user-de￿ned trace .

 

 

 

 

 

032,768 { +32,767 measurement units for logarithmic trace data in

 

 

 

 

TRA, TRB , TRC, trace range ,

or user-de￿ned trace .

 

 

 

 

 

6 1.8 2 10308 when using

number , prede￿ned v ariable , or

 

 

 

 

user-de￿ned v ariable .

 

 

 

 

 

Source-L ength Range

 

1 { 2048 position units. Default is

800 position units when using

TRA,

 

 

 

TRB, TRC . Truncated if longer than destination length. If shorter than

 

 

 

 

destination length, last element

is extended for operation.

 

 

 

Destination-L ength Range

 

1 { 2048 position units.

 

 

 

 

 

 

 

 

 

 

Example

10 OUTPUT 723;"SUB

CENTERWL,CENTERWL,100NM;"

Reduce center

wavelength by

 

 

 

 

 

100 nm.

 

 

Description The SUB command subtracts source 2 from source 1, point by point, then stores the value in the destination.

When the source is TRA, TRB, TRC, or trace range, ensure the data re￿ects one complete sweep using the SNGLS and TS commands.

7-471