Chapter 1

General Information

1-1

1-2

SCOPE OF MANUAL

This manual provides service information for all models of the Series

 

682XXB/683XXB Synthesized Signal Generators. The service informa-

 

tion includes replaceable parts information, functional circuit descrip-

 

tions, block diagrams, performance verification tests, and procedures

 

for calibration, troubleshooting, and assembly/subassembly removal

 

and replacement. (Throughout this manual, the terms 682XXB/

 

683XXB and signal generator will be used interchangeably to refer to

 

the instrument.) Manual organization is shown in the table of con-

 

tents.

 

NOTE

 

Service information for the series 682XXB signal generators

 

and series 683XXB signal generators is combined into one

 

manual because identical model numbers of each series con-

 

tain the same assemblies, subassemblies, and components.

 

Differences between the series are noted where applicable

 

throughout the manual.

INTRODUCTION

This chapter provides a general description of the Series 682XXB/

 

683XXB Synthesized Signal Generators, identification numbers,

 

related manuals, and options. Information is included concerning level

 

of maintenance, replaceable subassemblies and RF components,

 

exchange assembly program, and preventive maintenance. Static-

 

sensitive component handling precautions and lists of exchangeable

 

subassemblies and recommended test equipment are also provided.

1-3DESCRIPTION

The Series 682XXB Synthesized Signal Generator and the Series

 

683XXB Synthesized Signal Generator are microprocessor-based,

 

synthesized signal sources with high resolution phase-lock capability.

 

They generate both discrete CW frequencies and broad (full range)

 

and narrow band sweeps across the frequency range of 10 MHz to

 

65 GHz. All functions of the signal generators are fully controllable

 

locally from the front panel or remotely (except for power on/standby)

 

via the IEEE-488 General Purpose Interface Bus (GPIB).

 

The Series 682XXB Synthesized Signal Generator and the Series

 

683XXB Synthesized Signal Generator each presently consists of 15

 

models covering a variety of frequency ranges and power levels. Table

 

1-1, pages 1-4 and 1-5, lists models, frequency ranges, and maximum

 

leveled output.

682XXB/683XXB MM

1-3

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Anritsu 683XXB, 682XXB manual Scope of Manual, Introduction, 3DESCRIPTION
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682XXB, 683XXB specifications

The Anritsu 683XXB and 682XXB series are advanced vector network analyzers (VNAs) renowned for their precision and versatility in characterizing RF and microwave components. Designed for engineers and technicians involved in the development, manufacturing, and testing of high-frequency devices, these analyzers offer state-of-the-art technology that ensures optimal performance in various applications.

One of the hallmark features of the Anritsu 683XXB and 682XXB is their high dynamic range, which allows for accurate measurements of small reflection and transmission coefficients, essential for assessing the performance of complex RF structures. With frequency coverage extending from DC to 70 GHz, these analyzers cater to a broad spectrum of applications, making them suitable for industries such as telecommunications, aerospace, and automotive.

The user-friendly interface of the Anritsu VNAs is complemented by a high-resolution display, which facilitates easy navigation through measurement setups and results. The analyzers feature multiple measurement modes, including S-parameter measurements, time-domain analysis, and noise figure measurements, providing engineers with comprehensive tools for device characterization.

Both the 683XXB and 682XXB implement advanced calibration techniques, including automated calibration and error correction methods, to enhance measurement accuracy. These methods significantly reduce the uncertainties associated with test setups, enabling reliable performance evaluations of components like filters, amplifiers, and antennas.

Anritsu’s proprietary technologies, such as the VectorStar and ShockLine series integration, further empower the 683XXB and 682XXB models. These technologies enable high-throughput testing and improved measurement stability, addressing the needs of modern production environments that demand rapid turnaround times without sacrificing precision.

Additionally, the analyzers come equipped with various connectivity options, including USB, LAN, and GPIB, ensuring seamless integration into automated test systems. This adaptability enhances the analyzers' utility in both laboratory settings and field operations.

In conclusion, the Anritsu 683XXB and 682XXB series vector network analyzers represent the pinnacle of RF and microwave testing technology. With their unmatched precision, comprehensive measurement capabilities, and advanced calibration techniques, these instruments are indispensable tools for professionals striving to push the boundaries of high-frequency device performance and reliability.
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