TROUBLESHOOTING

TROUBLESHOOTING

TABLES

Table 5-24.Error Message 144

Error 144 RF was Off when Selftest started. Some tests where not performed

Description: Indicates that some self-tests where not performed be- cause the RF Output was selected OFF on the front panel.

Step 1. Press the OUTPUT key on the front panel to turn the RF

Output ON.

Step 2. Run self-test again.

Table 5-25.Error Message 145

Error 145 AM Meter or associated circuitry failed

Description: Indicates a failure of the internal amplitude modulation function. The 682XXB/683XXB may or may not provide amplitude modulation of the RF output signal using modulating signals from an external source.

Step 1. Set up the 682XXB/683XXB as follows:

a.Press SYSTEM, then Reset.

b.Press MODULATION, then AM to go to the Internal AM Status display.

c.Press On/Off to turn internal amplitude modulation on.

Step 2. Using an oscilloscope, verify the presence of a 10 volt peak to peak sine wave signal with a period of 100 ￿s at the rear panel AM OUT connector.

qIf present, replace the A10 PCB. If not present, replace the A8 PCB.

682XXB/683XXB MM

5-51

Page 216 Page 218
Page 217
Image 217
Anritsu 683XXB, 682XXB manual Error 145 AM Meter or associated circuitry failed
Page 216 Page 218

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.
Top Page Image Contents