Creating and Downloading User-Data Files

Data Transfer Troubleshooting (N5182A, E4438C and E8267D Only)

Requirement for Continuous User File Data Transmission

“Integer Number of Timeslots” Requirement for Multiple-Timeslots

If a user file fills the data fields of more than one timeslot in a continuously repeating framed transmission, the user file is restarted after the last timeslot containing completely filled data fields. For example, if the user file contains enough data to fill the data fields of 3.5 timeslots, the firmware loads 3 timeslots with data and restart the user file after the third timeslot. The last 0.5 timeslot worth of data is never modulated.

To solve this problem, add or subtract bits from the user file until it completely fills an integer number of timeslots

“Multiple-of-8-Bits” Requirement

For downloads to bit and binary memory, user file data must be downloaded in multiples of 8 bits (bytes), since SCPI specifies data in bytes. Therefore, if the original data pattern’s length is not a multiple of 8, you need to:

•add bits to complete the ASCII character

•replicate the data pattern to generate a continuously repeating pattern with no discontinuity

•truncate the excess bits

NOTE The “multiple- of- 8- bits” data length requirement is in addition to the requirement of completely filling the data field of an integer number of timeslots.

Using Externally Generated, Real-Time Data for Large Files

When the data fields must be continuous data streams, and the size of the data exceeds the available PRAM, real- time data and synchronization can be supplied by an external data source to the front- panel DATA, DATA CLOCK, and SYMBOL SYNC connectors. This data can be continuously transmitted, or can be framed by supplying a data- synchronous burst pulse to the EXT1 INPUT connector on the front panel. Additionally, the external data can be multiplexed into internally generated framing

PRAM Download Problems

Table 8-13 PRAM Download - Symptoms and Causes

Symptom

Possible Cause

 

 

 

Pattern reset bit not set.

The transmitted pattern is interspersed

Insure that the pattern reset bit (bit 7, value 128) is set on the last byte of your

with random, unwanted data.

downloaded data.

 

 

 

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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.
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