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Application Notes
The Internet of Things (IoT) is revolutionizing our world. It brings tremendous convenience to our daily activities, improves our safety, and makes our world a better place to live. Many electronics companies are riding the IoT wave to increase the competitiveness of their products by incorporating IoT connectivity. However, many engineers face challenges in connecting the devices, because devices such as hearing aids, sensors, wearables, and implantable devices are very small. It is impossible to include a connector on the product in order to perform measurements.
The Keysight X8711A IoT Device Functional Test Solution solves this problem by enabling engineers to perform over-the-air testing without a physical connection to the device. Its ability to communicate wirelessly with an IoT device, combined with a shield box to filter out interference, allows the user to perform accurate transmitter power, receiver sensitivity, and packet-error-rate (PER) tests in just seconds. By using the right system offset to compensate for over the air (OTA) and cable losses, the user can easily make accurate measurements.
This application note describes how to improve the accuracy of the Keysight X8711A by properly measuring path loss and applying the right system offset in the test plan.
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