concern because of the short distance between the phone's antenna— the primary source of the RF—and the person's head. The exposure to RF from mobile phones in which the antenna is located at greater distances from the user (on the outside of a car, for example) is drastically lower than that from hand-held phones, because a person's RF exposure decreases rapidly with distance from the source. The safety of so-called “cordless phones,” which have a base unit connected to the telephone wiring in a house and which operate at far lower power levels and frequencies, has not been questioned.

How much evidence is there that hand-held mobile phones might be harmful?

Briefly, there is not enough evidence to know for sure, either way; however, research efforts are on-going. The existing scientific evidence is conflicting and many of the studies that have been done to date have suffered from flaws in their research methods. Animal experiments investigating the effects of RF exposures characteristic of mobile phones have yielded conflicting results. A few animal studies, however, have suggested that low levels of RF could accelerate the development of cancer in laboratory animals. In one study, mice genetically altered to be predisposed to developing one type of cancer developed more than twice as many such cancers when they were exposed to RF energy compared to controls. There is much uncertainty among scientists about whether results obtained from animal studies apply to the use of mobile phones. First, it is uncertain how to apply the results obtained in rats and mice to humans. Second, many of the studies that showed increased tumor development used animals that had already been treated with cancer- causing chemicals, and other studies exposed the animals to the RF virtually continuously—up to 22 hours per day.

For the past five years in the United States, the mobile phone industry has supported research into the safety of mobile phones. This research has resulted in two findings in particular that merit additional study:

1In a hospital-based, case-control study, researchers looked for an association between mobile phone use and either glioma (a type of

66

Page 67 Page 69
Page 68
Image 68
Motorola C353 manual
Page 67 Page 69

C353 specifications

The Motorola C353 is a compact and user-friendly mobile phone that gained attention in the early 2000s for its remarkable blend of style and functionality. Targeting budget-conscious consumers, it epitomizes the transitional phase of mobile technology where basic functionality was coupled with emerging features.

One of the standout characteristics of the Motorola C353 is its sleek design. The phone features a candy bar form factor, making it lightweight and easily portable. The phone's compact size fits comfortably in one hand, while the simple arrangement of buttons ensures ease of use. The display is a 1.5-inch monochrome screen, which, while not impressive by today's standards, served its purpose well by displaying essential information, including signals, battery life, and texts.

The Motorola C353 operates on GSM technology, providing reliable connectivity for voice calls and basic texting. Its quad-band capability allows it to function in multiple regions, making it an excellent choice for users who travel internationally. The phone supports SMS, enabling users to send and receive text messages, a feature that was becoming increasingly important at the time.

Battery life is one of the phone's most compelling features. The Motorola C353 boasts a long-lasting battery, ensuring that users remain connected without the frequent need to recharge. This resilience is particularly appreciated by those who rely on their phones for extended periods, either during travel or in day-to-day activities.

The Motorola C353 also incorporates some entertainment features, including a monophonic ringtone generator that allows users to customize their tones. While basic, these personalization options help individuals express their unique styles.

In conclusion, the Motorola C353 serves as a reminder of the early mobile phone era where simplicity, reliability, and practicality formed the foundation of everyday communication. While far from the advanced smartphones of today, its essential features, sturdiness, and user-friendly interface made it a beloved device for many users. Its legacy remains a part of the mobile technology's evolution, highlighting how far we have come since those days while reminding us of the core functionalities that established the foundation of modern mobile devices.
Top Page Image Contents