Understanding Waveform Data

Creating and Downloading Waveform Files

Waveform Data Requirements

To be successful in downloading files, you must first create the data in the required format.

•Signed 2’s complement

•2- byte integer values

•Input data range of −32768 to 32767

•Minimum of 60 samples per waveform (60 I and 60 Q data points)

•Interleaved I and Q data

•Big endian byte order

•The same name for the marker, header, and I/Q file

This is only a requirement if you create and download a marker file and or file header, otherwise the signal generator automatically creates the marker file and or file header using the I/Q data file name.

NOTE FTP can be used without programming commands to transfer files from the PC to the signal generator or from the signal generator to the PC.

For more information, see “Waveform Structure” on page 193.

For more information on waveform data, see “Understanding Waveform Data” on page 185.

The signal generator accepts binary data formatted into a binary I/Q file. This section explains the necessary components of the binary data, which uses ones and zeros to represent a value.

Bits and Bytes

Binary data uses the base- two number system. The location of each bit within the data represents a

value that uses base two raised to a power (2n- 1). The exponent is n − 1 because the first position is zero. The first bit position, zero, is located at the far right. To find the decimal value of the binary data, sum the value of each location:

1101 = (1 ⋅ 23) + (1 ⋅ 22) + (0 ⋅ 21) + (1 ⋅ 20) = (1 ⋅ 8) + (1 ⋅ 4) + (0 ⋅ 2) + (1 ⋅ 1) = 13 (decimal value)

Notice that the exponent identifies the bit position within the data, and we read the data from right to left.

The signal generator accepts data in the form of bytes. Bytes are groups of eight bits:

01101110 = (0 ⋅27) + (1 ⋅ 26) + (1 ⋅ 25) + (0 ⋅ 24) +(1 ⋅23) + (1 ⋅ 22) + (1 ⋅ 21) + (0 ⋅ 20) = 110 (decimal value)

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

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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.

Agilent Technologies E8663B, N5183A manual Understanding Waveform Data, Waveform Data Requirements

Models: N5183A N5183A MXG E8663B N5181A/82A

Waveform Data Requirements