1( ) 2(ENT)

A. PROC.

ENTER/

Joystick

MENU

SETUP

RETURN

5() 6(RTN)

F SETUP

Using the Road Equalizer function

Road Equalizer (REAL-TIME OPTIMIZED ADAPTIVE DRIVING EQUALIZER) is a function that automatically adjusts the equalizer settings during driving according to the amount of road noise.

To use Road Equalizer, first connect the microphone. (See “Preparations for automatic adjustments” on page 12.)

When used in combination with a separately sold monitor that is Road EQ compatible, the monitor’s built-in microphone can be used, in which case the microphone included with the PXI- H990 cannot be used. When connecting two PXI-H990 units, the built-in microphone in the separately sold monitor cannot be used.

Perform the Road Equalizer operations in the following order:

A

B

C

D

Selection of microphone

Measurement of frequency response inside the vehicle

Selection of Road Equalizer setting (ON/OFF)

Selection of mode

In order to avoid the effects of exterior noises during measurement of frequency response inside the vehicle, move the car to a quiet location and change the ignition switch to the ACC position.

Due to vibration, correct measurement data may not be acquired, so do not switch on the engine. However, be aware that the battery may be drained.

Do not remove the microphones when using Road Equalizer.

Supplement See page 25 for supplementary information.

15-EN

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Alpine PXI-H990 owner manual Using the Road Equalizer function, 15-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.