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103
INTernal
Internal amplitude stabilization
EXTernal
External amplitude stabilization
MMHead
Amplitude stabilization through MMW source module
i.
Numeric Boolean response data
The Boolean response data returns a binary value of 1 or 0.
j.
String response data
The string response data and string parameters are the same. The main difference is that the string response data use
double quotes rather than single quotes as the separator. The string response data can also be inserted with double quotes
inside which there can be no characters. Examples of string response data:
“This is a string”
“one double quote inside brackets: (“”)”
6) Systems of Values in Commands
The value of the command can be entered in binary, decimal, hexadecimal or octal format. In the binary, hexadecimal, or
octal format, a suitable identifier should be added in front of the value. In the decimal (default) format, an identifier isn't
required. When the value without an indicator is entered, the device will ensure that it is entered in decimal format. The
identifiers required in all formats are listed as follows:
#B indicates a binary value;
#H indicates a hexadecimal value;
#Q indicates an octal number.
The representations of the decimal value 45 in the SCPI are given as follows:
#B101101
#H2D
#Q55
The following example shows setting of the RF output power as 10 dBm (or the value equivalent to the current selected
unit including DBUV or DBUVEMF) with the hexadecimal value 000A.
:POW #H000A
In a non-decimal format, the measurement unit such as DBM or mV isn
‟
t used together with the value.
7) Command line structure
A command line may contain multiple SCPIs. To indicate the end of the current command line, the following methods can
be used:
Enter;
Enter and EOI;
EOI and the last data byte.
Commands in command line are separated by semicolons, and commands for different subsystems begin with a colon. For
example:
