Creating and Downloading Waveform Files

Commands for Downloading and Extracting Waveform Data

Encrypted I/Q Files and the Securewave Directory

The signal generator uses the securewave directory to perform file encryption (extraction) and decryption (downloads). The securewave directory is not an actual storage directory, but rather a portal for the encryption and decryption process. While the securewave directory contains file names, these are actually pointers to the true files located in signal generator memory (volatile or non- volatile). When you download an encrypted file, the securewave directory decrypts the file and unpackages the contents into its file header, I/Q data, and marker data. When you extract a file, the securewave directory packages the file header, I/Q data, and marker data and encrypts the waveform data file. When you extract the waveform file (I/Q data file), it includes the other two files, so there is no need to extract each one individually.

The signal generator uses the following securewave directory paths for file extractions and encrypted file downloads:

Volatile

/user/bbg1/securewave/file_name or swfm:file_name

Non- volatile /user/securewave or snvwfm1:file_name

NOTE To extract files (other than user- created I/Q files) and to download encrypted files, you must use the securewave directory. If you attempt to extract previously downloaded encrypted files (including Signal Studio downloaded files or internally created signal generator files (ESG/PSG only)) without using the securewave directory, the signal generator generates an error and displays:

ERROR: 221, Access Denied.

Encrypted I/Q Files and the Securewave Directory (Agilent MXG)

NOTE Header parameters of files stored on the Agilent MXG’s internal or USB media cannot be changed unless the file is copied to the volatile BBG memory. For more information on modifying header parameters, refer to the User’s Guide.

When downloading encrypted files (.SECUREWAVE) from the USB media that have had the file suffix changed to something other than .SECUREWAVE, you must use the Use As or Copy File to Instrument menus to play an encrypted waveform file in the signal generator.

File Transfer Methods

SCPI using VXI- 11 (VMEbus Extensions for Instrumentation as defined in VXI- 11)

SCPI over the GPIB or RS 232

SCPI with sockets LAN (using port 5025)

File Transfer Protocol (FTP)

SCPI Command Line Structure

The signal generator expects to see waveform data as block data (binary files). The IEEE standard 488.2- 1992 section 7.7.6 defines block data. The following example shows how to structure a SCPI

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Agilent Technologies E8663B, N5181A/82A, N5183A MXG manual File Transfer Methods, Scpi Command Line Structure

N5183A, N5183A MXG, E8663B, N5181A/82A specifications

Agilent Technologies is renowned for its innovative solutions in electronic test and measurement equipment. Among its offerings are several signal generators including the N5181A, N5182A, E8663B, and N5183A MXG. These models are distinguished not only by their performance but also by their versatility across various applications in communications, aerospace, and electronics.

The Agilent N5181A and N5182A, part of the MXG family, are highly versatile signal generators known for their exceptional frequency performance and flexibility. The N5181A operates from 100 kHz to 6 GHz, while the N5182A extends that range up to 12 GHz. They provide high fidelity signals with low phase noise, making them ideal for the development and testing of RF components and systems. These generators support a wide variety of modulation formats, including AM, FM, PM, and pulse modulation, catering to diverse application needs.

The E8663B, meanwhile, is designed for the range of 250 kHz to 3 GHz and is also recognized for its high-performance features. Its built-in capabilities for modulation make it effective for testing wireless devices, ensuring that signals can be simulated accurately in both laboratory and field environments. It is especially beneficial for users requiring a straightforward and efficient solution with high reliability.

The N5183A MXG signal generator enhances the lineup with frequency coverage up to 6 GHz and advanced capabilities. It integrates various modulation capabilities while ensuring high signal integrity. Its architecture is tailored for both production test environments and research applications, providing users with the flexibility to adapt to changing testing requirements.

Common characteristics across these models include a user-friendly interface that simplifies configuration and operation. They are often equipped with LAN and USB interfaces for easy remote control and integration into automated test systems. The robustness of these generators allows them to perform reliably in challenging environments, making them essential tools in laboratories, manufacturing floors, and field testing scenarios.

In summary, Agilent's signal generators, including the N5181A, N5182A, E8663B, and N5183A MXG, represent a blend of advanced technology, flexibility, and precision. These instruments are vital in facilitating the evolution of cutting-edge communication technologies, ensuring that designers and engineers can confidently meet the demands of modern electronics.