operation, iPhone’s SAR measurement may exceed the FCC exposure guidelines if positioned less than 5/8 inch (15 mm) from the body. For optimal mobile device performance and to be sure that human exposure to RF energy does not exceed the FCC guidelines, always follow these instructions and precautions: When on a call using the built-in audio receiver in iPhone, hold iPhone with the 30-pin connector pointed down toward your shoulder to increase separation from the antenna. For body-worn operation, keep iPhone at least 5/8 inch (15 mm) away from the body, and only use carrying cases, belt clips, or holders that do not have metal parts and that maintain at least 5/8 inch (15 mm) separation between iPhone and the body. When using the EDGE data transmission feature of iPhone (see the iPhone User’s Guide for more information), position iPhone’s antenna at least 5/8 inch (15 mm) from the body.

If you are still concerned about exposure to RF energy, you can further limit your exposure by limiting the amount of time using iPhone, since time is a factor in how much exposure a person receives, and by placing more distance between your body and iPhone, since exposure level drops o∂ dramatically with distance.

Additional Information

For more information from the FCC about exposure to RF energy, see: www.fcc.gov/oet/rfsafety

The FCC and the U.S. Food and Drug Administration (FDA) also maintain a consumer website at www.fda.gov/cellphones to address inquiries about

the safety of mobile phones. Please check the website periodically for updates.

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For information about the scientific research related to RF energy exposure, see the EMF Research Database maintained by the World Health Organization at: www.who.int/emf

Radio Frequency Interference

Nearly every electronic device is subject to radio frequency interference from external sources if inadequately shielded or designed, or otherwise not configured to be compatible. As a result, iPhone may cause interference with other devices. Follow these instructions to avoid interference problems.

Aircraft Federal Aviation Administration (FAA) regulations may prohibit using wireless devices while in the air. For more information about using Airplane Mode to turn o∂ the iPhone wireless transmitters, see the iPhone User’s Guide.

Vehicles RF signals may a∂ect installed or inadequately shielded electronic systems in motor vehicles. Check with the manufacturer or its representative regarding your vehicle.

Electronic Devices Most modern electronic equipment is shielded from RF signals. However, certain electronic equipment may not be shielded against the RF signals from iPhone.

Pacemakers The Health Industry Manufacturers Association recommends that a minimum separation of 6 inches (15 cm) be maintained between a handheld wireless phone and a pacemaker to avoid potential interference with the pacemaker. Persons with pacemakers:

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Apple A1303 manual Additional Information, Radio Frequency Interference
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A1303 specifications

The Apple A1303 is an ARM-based system-on-chip (SoC) designed to power electronic devices with a focus on efficiency and performance. Introduced in 2008, the A1303 represents a significant advancement in mobile processing technology, featuring a dual-core architecture that allows it to handle demanding applications while maintaining low power consumption.

One of the main features of the A1303 is its 32-bit architecture, which enables it to run complex operating systems, including Apple's iOS. This chip provides an optimal balance between speed and energy efficiency, making it ideal for mobile devices such as the iPhone and iPod Touch. With a clock speed of up to 600 MHz, the A1303 delivers robust processing capabilities for graphics-intensive applications and smooth multitasking experiences.

The A1303 integrates a variety of technologies that enhance its performance. It utilizes ARM's Cortex-A8 core architecture, which allows for improved data handling and processing speeds. Coupled with a PowerVR SGX GPU, the A1303 is capable of rendering advanced graphics, making it suitable for gaming and multimedia applications. This combination provides a seamless user experience and gives developers the tools necessary to create high-quality apps.

Another critical characteristic of the A1303 is its efficient power management. Designed to minimize energy consumption, the A1303 allows devices to prolong battery life without compromising performance. This energy efficiency is particularly important in mobile devices that rely on battery power for longevity, making the A1303 a strategic component in Apple's lineup.

Furthermore, the A1303 supports various connectivity options, enabling fast data transfer and communication. Features such as Bluetooth and Wi-Fi are integrated, allowing users to stay connected without the need for additional components. The versatility of the A1303 makes it adaptable to numerous applications and environments.

Overall, the Apple A1303 is a pioneering SoC that underscores Apple's commitment to innovation in mobile technology. With its advanced processing capabilities, energy efficiency, and support for high-performance graphics, the A1303 laid the groundwork for future generations of mobile chips, solidifying its place in the evolution of portable technology.
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