Language Reference

VARIANCE

Computes the amplitude variance of the speci￿ed trace, in measurement

 

units.

 

 

Item

 

 

Description

 

 

Source-Amplitude Range

0 {

10,000 measurement units for

linear

trace

data.

 

 

 

032,768 { +32,767 measurement

units

for logarithmic trace data.

 

Source-L ength Range

3 {

2048 position

units. Default is

800

position

units when using TRA,

 

 

 

TRB,

TRC.

 

 

 

 

Example

140

OUTPUT 723;"SNGLS;TS;"

Activate single-sweep

mode and sweep mea-

 

 

 

 

 

surement range.

 

 

150

OUTPUT 723;"VARIANCE TRA?;"

Query variance of trace A to computer .

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