Creating and Downloading Waveform Files

Loading, Playing, and Verifying a Downloaded Waveform

Line

Code Description—Download the I/Q data

15Send the generated waveform data stored in the I/Q array (iqbuffer) to the signal generator.

•iwrite() sends the data specified in iqbuffer to the signal generator (session identifier specified in id).

•The third argument of iwrite(), bytesToSend, contains the length of the iqbuffer in bytes. In this example, it is 2000.

•The fourth argument of iwrite(), 0, means there is no END of file indicator in the data.

In many programming languages, there are two methods to send SCPI commands and data:

—Method 1 where the program stops the data download when it encounters the first zero (END indicator) in the data.

—Method 2 where the program sends a fixed number of bytes and ignores any zeros in the data. This is the method used in our program.

For your programming language, you must find and use the equivalent of method two. Otherwise you may only achieve a partial download of the I and Q data.

16Send the terminating carriage (\n) as the last byte of the waveform data.

•iwrite() writes the data “\n” to the signal generator (session identifier specified in id).

•The third argument of iwrite(), 1, sends one byte to the signal generator.

•The fourth argument of iwrite(), 1, is the END of file indicator, which the program uses to terminate the data download.

To verify the waveform data download, see “Loading, Playing, and Verifying a Downloaded Waveform” on page 224.

Loading, Playing, and Verifying a Downloaded Waveform

The following procedures show how to perform the steps using SCPI commands. For front panel key commands, refer to the User’s Guide or to the Key help in the signal generator.

Loading a File from Non-Volatile Memory

Select the downloaded I/Q file in non- volatile waveform memory (NVWFM) and load it into volatile waveform memory (WFM1). The file comprises three items: I/Q data, marker file, and file header information.

Send one of the following SCPI command to copy the I/Q file, marker file and file header information:

:MEMory:COPY:NAME "<NVWFM:file_name>","<WFM1:file_name>" :MEMory:COPY:NAME "<NVMKR:file_name>","<MKR1:file_name>" :MEMory:COPY:NAME "<,"<HDR:file_name>"

224

Agilent N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide

Page 233 Page 235
Page 234
Image 234
Agilent Technologies N5183A MXG, N5181A/82A, E8663B manual Loading, Playing, and Verifying a Downloaded Waveform
Page 233 Page 235

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.
Top Page Image Contents