Technical data

584 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz
28 Programming Fundamentals
Parameters in Commands
There are four basic types of parameters: booleans, keywords, variables and arbitrary block
program data.
OFF|ON|0|1(Boolean) This is a two state boolean-type parameter. The numeric value
0 is equivalent to OFF. Any numeric value other than 0 is equivalent to ON. The numeric
values of 0 or 1 are commonly used in the command instead of OFF or ON. Queries of the
parameter always return a numeric value of 0 or 1.
keyword The keywords that are allowed for a particular command are defined in the
command syntax description.
Units Numeric variables may include units. The valid units for a command depend on the
variable type being used. See the following variable descriptions. The indicated default
units will be used if no units are sent. Units can follow the numerical value with, or without,
a space.
Variable A variable can be entered in exponential format as well as standard numeric
format. The appropriate range of the variable and its optional units are defined in the
command description.
The following keywords may also be used in commands, but not all commands allow
keyword variables.
• DEFault - resets the parameter to its default value.
• UP - increments the parameter.
[ ] Keywords in square brackets are
optional when composing the
command. These implied
keywords will be executed even if
they are omitted.
Command:
[SENSe:]BANDwidth[:RESolution]
:AUTO
The following commands are all valid and
have identical effects:
• Ex1: bandwidth:auto
• Ex2: band:resolution:auto
• Ex3: sense:bandwidth:auto
< > Angle brackets around a word, or
words, indicates they are not to be
used literally in the command.
They represent the needed item.
Command:
SENS:FREQ <freq>
In this command example the word <freq>
should be replaced by an actual frequency.
• Ex: SENS:FREQ 9.7MHz.
{ } Parameters in braces can
optionally be used in the command
either not at all, once, or several
times.
Command:
MEASure:BW <freq>{,level}
A valid command is:
meas:BW 6 MHz, 3dB, 60dB
Special
Character
Meaning Example