Remote Operation

Programming Syntax

Character Program Data

Character program data is used to convey parameter information as alpha or alphanumeric strings.

Example ROUTE:VERIFY:ON:ALL

The :VERIFY function is specified to be ON for ALL channels.

Numeric Program Data

Some command headers require program data to be a number.

Example ROUTE:DELAY .03,(@101,103,105)

Program Message Terminator

Query Command

where the :DELAY function is specified to be 30 ms on channels 101, 103, and 105.

The program codes within a data message are executed after the program message terminator is received. The terminator may be either an NL (New Line) character, an EOI (End-Or-Identify) asserted, or a combination of the two. All three ways are equivalent. Asserting EOI sets the GPIB EOI control line low on the last byte of the data message. The NL character is an ASCII linefeed (decimal 10).

Command headers immediately followed by a question mark (?) are queries. Query commands are used to find out how the switch driver is currently configured. After receiving a query, the switch driver interrogates the requested function and places the answer in its output queue. The output message remains in the queue until it is read or another command is issued. When read, the message is transmitted across the bus to the designated listener (typically a controller).

Example The query ROUTE:PATH:VALUE? <path name> places the value of the named path in the output queue. In conjunction with this, the controller input statement:

ENTER <device selector>;Values$

passes the value across the bus to the controller and places it in the BASIC variable “Values$”.

Agilent 87130A Operating and Service Manual 4-7

Page 48 Page 50
Page 49
Image 49
Agilent Technologies 87130A manual Query Command, Character Program Data, Numeric Program Data
Page 48 Page 50

87130A specifications

Agilent Technologies 87130A is a highly regarded network analyzer that has been widely adopted in the field of RF and microwave testing. Known for its versatility and precision, the 87130A is designed for evaluating components and devices in various applications, including telecommunications and electronics.

One of the main features of the 87130A is its frequency range, which spans from 300 kHz to 3 GHz. This broad spectrum allows engineers to test a wide variety of RF components, including amplifiers, filters, and antennas. The analyzer provides vector network analysis capabilities, enabling users to measure both the magnitude and phase of S-parameters, essential for characterizing components effectively.

The instrument is equipped with a powerful internal calibration capability, which ensures accurate measurements by compensating for test fixture errors and other variables. The built-in electronic calibration options further enhance measurement accuracy and repeatability, giving engineers confidence in their results.

Another notable characteristic of the 87130A is its graphical user interface, which is intuitive and user-friendly. The display provides clear visual representations of measurement data, allowing for easy interpretation and analysis. Users can access a variety of measurement functions, such as gain compression, group delay, and return loss, making it a versatile tool for multi-faceted testing.

The Agilent 87130A employs advanced measurement algorithms that improve speed and accuracy. These enhancements facilitate rapid data acquisition, which is particularly beneficial in production environments where time is critical. The analyzer also supports multiple calibration techniques, including through-reflect-match (TRM) and short-open-load (SOL), catering to diverse testing needs.

Connectivity options are abundant, with GPIB, LAN, and USB interfaces, allowing seamless integration into automated test setups. This modularity supports remote operation, making it easier to incorporate the analyzer into various testing environments.

Overall, Agilent Technologies 87130A stands out for its precision, ease of use, and flexibility in RF and microwave testing applications. Its combination of advanced features and robust performance makes it a staple in laboratories, production lines, and research settings, helping engineers and technicians achieve optimal results in their measurement endeavors.
Top Page Image Contents