FM

CALIBRATION

CALIBRATION

Models 682XXB with Firmware Version 2.18 and above

Models 683XXB with Firmwave Version 2.20 and above

Models 682X5B/683X5B with Firmware Version 1.07 and above

This procedure provides the steps necessary to perform FM calibra- tion. This consists of calibrating the FM Meter circuit and the FM Variable Gain Control DAC. The FM Variable Gain Control DAC is calibrated for input sensitivities in Locked, Locked Low-Noise, Un- locked Narrow, and Unlocked Wide FM modes.

IBM-Compatible PC

682XXB / 683XXB

 

 

 

 

Spectrum

 

 

 

EXT REF

Analyzer

 

 

10 MHz

INPUT

 

 

Serial

 

 

COM1

I/O

REF OUT

 

 

or

 

 

 

 

COM2

 

 

 

 

 

 

FM

RF

RF

 

 

IN

OUTPUT

IN

Function

Generator

DMM

INPUT

OUTPUT

 

 

 

BNC

 

 

 

 

Tee

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 4-13.Equipment Setup for FM Calibration

Equipment Setup

Connect the equipment, shown in Figure 4-13, as follows:

1.Interface the PC to the 682XXB/683XXB by per- forming the initial setup procedure, pages 4-7 to 4-12.

2.Connect the 682XXB/683XXB rear panel 10 MHz REF OUT to the Spectrum Analyzer External Ref- erence input.

3.Connect the Function Generator Output to the BNC tee. Connect one leg of the tee to the 682XXB/683XXB front panel FM IN. Connect the other leg of the tee to the DMM input.

4-44

682XXB/683XXB MM

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Anritsu 682XXB, 683XXB manual Bnc
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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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