Automatic Adjustments

Preparations for automatic adjustments

The PXI-H990 is equipped with two automatic adjustment functions: “Road Equalizer” and “Automated Time Correction”.

The preparations described below must be made in order to perform these automatic adjustments. After making these preparations, refer to “Automatic adjustments (Using the Road Equalizer function)” (page 15) and “Performing time correction automatically (Automated Time Correction)” (page 21) to perform the respective automatic adjustments.

• When performing automatic adjustment, set the head unit to the TUNER mode before adjusting.

1 Check that the head unit defeat mode is off.

2 Adjust the head unit and amplifier levels.

Head unit:

Set the balance and fader to “center”.

Front, rear and center amplifiers:

Set the amp gains to “center” or “normal” to start. If there are no rear speakers, check that the rear speakers are turned off. (See page 7.) Gain levels may be changed if you are not satisfied with the automatic results. Make the gain changes and return the automatic adjustment.

Subwoofer amplifier:

Set the amplifier gain to “center” or “normal”. If the subwoofer is located in the trunk or a remote place (for example at the very back of a station wagon), adjust the subwoofer to increase the volume several steps.

Speaker Crossovers:

Set the crossovers for all the speakers in the system that will require them. See page 42, “Crossover adjustment/Switching the phase”, for more information on setting the crossovers.

12-EN

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Alpine PXI-H990 owner manual Preparations for automatic adjustments, 12-EN

PXI-H990 specifications

The Alpine PXI-H990 is a state-of-the-art embedded computing platform designed to meet the demanding requirements of modern testing and measurement applications. As part of the PXI (PCI eXtensions for Instrumentation) standard, the PXI-H990 incorporates modularity, high-performance, and scalability, making it an ideal solution for engineers and researchers in various industries including telecommunications, aerospace, and automotive.

One of the standout features of the Alpine PXI-H990 is its powerful processing capabilities. It utilizes a multi-core processor architecture that ensures efficient data handling and processing, crucial for real-time applications. The device supports high-speed data acquisition, helping engineers achieve accurate measurements and reduce testing time.

The PXI-H990 comes equipped with flexible I/O options that allow users to customize the platform according to specific application needs. Its slots support a wide range of modules, including those for signal generation, analysis, and data logging. This versatility ensures that systems can be tailored for diverse tasks without the need for extensive hardware changes.

The architecture of the PXI-H990 allows for high-speed communications between modules, enabled by the PXI backplane. This interconnectivity facilitates synchronized operation, enhancing timing accuracy, which is especially important in applications such as radar and communication systems testing. Furthermore, the device’s built-in synchronization capabilities allow for precise control over multiple instruments and measurements.

On the connectivity front, the PXI-H990 supports various interfaces, including USB, Ethernet, and Serial. This ensures seamless integration with other equipment and facilitates easy data transfer. The device also comes with advanced software support, enabling users to leverage powerful programming environments for automation, scripting, and analysis.

Additionally, the Alpine PXI-H990 is designed with durability and reliability in mind. It features rugged construction, ensuring it can withstand challenging operational environments. This reliability is further enhanced by built-in cooling systems that maintain optimal operating temperatures, even during intensive data processing tasks.

In conclusion, the Alpine PXI-H990 stands out for its combination of high performance, modularity, and flexibility. Its advanced processing capabilities, extensive I/O options, and robust architecture make it a leading choice for engineers and organizations looking for reliable embedded solutions in testing and measurement applications.