PERFORMANCE

AMPLITUDE

VERIFICATION

MODULATION TEST

AM Input The following procedure lets you measure the abso-

Sensitivity lute peak AM values for a 50% AM signal and calcu-

Procedure late the actual modulation value.

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

a. Reset the instrument by pressing SYSTEM , then Reset . Upon reset, the CW Menu is dis- played.

b. Press Edit F1 to open the current frequency parameter for editing.

c. Set F1 to 5.0 GHz.

d. Press Edit L1 to open the current power level parameter for editing.

e. Set L1 to a power level that is 6 dB below maximum rated power (refer to Table 3-2, page 3-6).

f. Press MODULATION , then AM . At the result- ing AM Status menu, press On/Off to turn AM on.

2. Set up the Spectrum Analyzer as follows:

a. CF: 5.0 GHz

b. Span/Div: 0 Hz

c. RBW: 100 kHz

d. MIN Noise: Activate

3. On the Spectrum Analyzer, adjust the reference level to place the trace 6 to 8 dB below the top graticule of the display.

4. Set up the Modulation Analyzer for:

a. AM PK(+)

b. 300 Hz High-Pass Filter

c. 20 kHz Low-Pass Filter

5. Measure the peak AM on the Modulation Ana- lyzer. Record the AM PK(+) reading on the Test Record.

6. Press PK(–) on the Modulation Analyzer.

7. Measure the peak AM on the Modulation Ana- lyzer. Record the AM PK(–) reading on the Test Record.

682XXB/683XXB MM

3-31

Page 91
Image 91
Anritsu 683XXB, 682XXB manual Performance Amplitude Verification Modulation Test

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.