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Handheld Vector Network Analyzer

Siglent SHN900A229 May 2024 - Siglent introduced its new handheld vector network analyzer series SHN900A. It is available with a frequency as high as 26.5GHz. The Analyzer integrates vector network analysis, spectrum analysis, cable and antenna test and time domain analysis in one portable device. It is powered by Li-ion batteries, which allow an endurance of up to 4 hours. The main areas of applications are installation, maintenance and service of communication systems in the field as well as maintenance for production lines and field tests at automotive electronics.

With a dynamic range of up to 110 dB, the SHN900A is well equipped for applications that require high dynamics. The low trace noise (0.0005 dB rms, 0.015 deg rms) improves the test accuracy and meets the user's need for precise measurement. SHN900A supports the measurement of S-parameters (S11, S12, S21, S22) as well as the differential S-parameters (Sdd11, Sdc11, Scd11, Scc11), and supports all standard display formats such as Smith Chart, Polar Chart, SWR, etc. The high dynamic, the low noise and the flexible measurement and display settings help the test engineer to get reliable data.

The accuracy of every network analyzer is closely related to calibration. SHN900A supports calibration methods such as SOLT, SOLR, TRL, Response, Enhanced Response, etc. It is compatible with a variety of calibration sets, supports user-defined calibration kits, and facilitates the testing of devices with different interface types. SHN900A supports impedance conversion, fixture simulation, adapter removal/insertion, etc.

Wide Range of Standard Functions

The Cable and Antenna Test (CAT) mode of the SHN900A assesses and diagnoses the electrical performance of RF and microwave transmission systems. It is well-suited for tasks like installing and maintaining antenna systems, conducting distance-to-fault (DTF) measurements on cables, measuring single-port cable loss, and assessing antenna matching. The SHN900A also includes a built-in GPS function for providing geographical positioning during measurements. Its bias tee feature conveniently supplies DC bias to external objects being measured. Capabilities such as segmented sweep and frequency offset mode enhance analysis precision, efficiency, and flexibility for components testing.

The device includes a custom-designed portable bag for secure transportation and convenient storage of all accessories in one place.

Useful optional Enhancements

The spectrum analysis mode facilitates measurement of parameters like channel power, adjacent channel power ratio (ACPR), and occupied bandwidth. This enables the technician in the field to verify RF signals and make sure all is in specification.

The Marker → SA function allows a quick change from VNA to spectrum analyzer mode and look at the specific marker frequency point in both modes. A convenient way streamlining signal search and analysis. Time Domain Analysis (TDA) supports various functions such as time-domain transformation, windowing, and gating, aiding in device characterization from both time and frequency domain perspectives. Time Domain Reflectometry (TDR) offers many enhancements compared to TDA. This include reflection and transmission analysis, eye diagram simulation, also allowing swift fault localization and type determination, along with simulated eye diagram generation and jitter injection for assessing signal transmission effects.

Usability for the field

The SHN900A is built for a concise and user-friendly experience, offering flexible and straightforward operation. Its quick-access buttons and intuitive setup structure streamline testing procedures, facilitating swift, error-free standardized measurements. Engineers can easily manage windows, channels, and traces, enhancing usability and meeting diverse test needs efficiently. Despite its high integration, the SHN900A features a spacious 8.4-inch touchscreen within a rugged yet lightweight chassis, weighing just 3.2kg for easy portability.

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