Language Reference

Syntax Diagram Elements (continued)

Syntax Component

 

 

 

 

 

 

 

 

De￿nition/Range

 

 

 

 

 

 

 

 

 

 

 

 

 

prede￿ned

function

AMPU, WLUNITS, MEASU , MEM, MKBW , PEAKS, POSU , PWRBW, RMS, STB ,

 

 

 

STDEV, SUM, SUMSQR, V ARIANCE.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A prede￿ned function

is

an

analyzer command

that

returns

a number

that

 

 

 

 

can be operated on

b y other commands called

compatible

functions

. Insert

a

 

 

 

prede￿ned function

into a command statement where

prede￿ned function

 

 

 

 

appears in the command syntax chart.

(See

compatible

function

in

this table .)

 

 

 

 

 

 

 

prede￿ned

v ariable

The values of the

following variables change depending on the current

 

 

 

 

 

 

instrument

settings.

Each

variable

represents

the

value

of

the

command

 

 

 

 

function

that has the

same name

as

the variable .

 

 

 

 

 

 

 

 

 

 

 

 

AT CALPWR

CENTERWL

CNVLOSS DL LG MKA MKACT MKAL MKAR MKWL

 

 

 

 

MKN MKP MKPAUSE MKPX MKT MKTV

ML NSTATE RB RBR RL RLPOS

 

 

 

 

ROFFSET SIGDEL

SP SS ST STARTWL STOPWL TH VB VBR VTL WLOFFSET

 

 

 

 

 

 

 

 

 

 

 

trace

element

Value

contained in

one trace point.

Notated

as

TRA[N]

where

N speci￿es the

 

 

 

point

position in

the

trace

arra y.

Values

for

N

are

 

1 to 2048,

or 1

to the

 

 

 

 

length speci￿ed by

TRDEF,

whichever

is

less.

Same

for

trace B

(TRB[N]),

 

 

 

 

trace

C

(TRC[N]),

and user-de￿ned

 

traces

(LABEL[N]).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

trace

range

Values

contained

in

trace

segment.

Multi-point

segments are

notated

as

 

 

 

 

TRA[N,M], where

N and M are end points of a segment and

specify

point

 

 

 

 

positions

in

trace

array.

Values

for

N

or M are 1 to 2048, or

1

to

the length

 

 

 

speci￿ed

by

TRDEF,

whichever

is less.

Same for trace B (TRB[N,M]),

 

trace

C

 

 

 

(TRC[N,M]),

and

user-de￿ned traces

(LABEL[N,M]).

Single-point

segments are

 

 

 

notated same as trace element above.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

units

Represent standard scienti￿c

units.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amplitude Units:

 

 

 

 

 

DB, DBM, MW , NW, PW, UW, W

 

 

 

 

 

 

 

Current

Units:

 

 

 

 

 

A,

MA,

UA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Frequenc y Units:

 

 

 

 

 

HZ, KHZ, MHZ, GHZ, KZ, MZ, GZ

 

 

 

 

 

 

 

Time

Units:

 

 

 

 

 

 

S,

MS,

US, SC

 

 

 

 

 

 

 

 

 

 

 

 

 

Wavelength Units:

 

 

 

 

 

ANG,

KM, NM, UM, PM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7-4