6-3
Programming Commands
Command Conventions
Command Conventions
Table 6-1.
Convention
Description
< >
Angle brackets indicate text strings entered by the developer.
[ ]
Square brackets indicate that the keyword
DEFAULT
can be used instead of a
value or a variable for that parameter. Refer to the actual command description
for the behavior when the
DEFAULT
keyword is used for a parameter.
|
Indicates a choice of one element from a list.
{ }
Braces indicate a group of constants to select from. Each constant is separated
by the | character.
name
Indicates the variable for which you provide a descriptive name. Any letter
(Aa-Zz) followed by letters, digits (0-9) and underscore (_). Only the first 32
characters are significant.
spec_min
–infinity. The parameter
VSHFBPLQ
cannot be a variable, only a constant or
DEFAULT
.
spec_max
+infinity. The parameter
VSHFBPD[
cannot be a variable, only a constant or
DEFAULT.
from
Start wavelength or frequency of trace in nm (default) or THz.
to
Stop wavelength or frequency of trace in nm (default) or THz.
excursion
+excursion: means excursion dBs up (for example, from a pit).
-excursion: means excursion dBs down (for example, from a peak).
ref_pt
The reference point to be used for a measurement keyword.
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