Section 12

believe that accessories that claim to shield the head from those emissions reduce risks. Some products that claim to shield the user from RF absorption use special phone cases, while others involve nothing more than a metallic accessory attached to the phone. Studies have shown that these products generally do not work as advertised. Unlike "hand-free" kits, these so-called "shields" may interfere with proper operation of the phone. The phone may be forced to boost its power to compensate, leading to an increase in RF absorption. In February 2002, the Federal trade Commission (FTC) charged two companies that sold devices that claimed to protect wireless phone users from radiation with making false and unsubstantiated claims. According to FTC, these defendants lacked a reasonable basis to substantiate their claim.

What about wireless phone interference with medical equipment?

Radio frequency energy (RF) from wireless phones can interact with some electronic devices. For this reason, FDA helped develop a detailed test method to measure electromagnetic interference (EMI) of implanted cardiac pacemakers and defibrillators from wireless telephones. This test method is now part of a standard sponsored by the Association for the Advancement of Medical instrumentation (AAMI). The final draft, a joint effort by FDA, medical device manufacturers, and many other groups, was completed in late 2000. This standard will allow manufacturers to ensure that cardiac pacemakers and defibrillators are safe from wireless phone EMI. FDA has tested wireless phones and helped develop a

140

Page 143 Page 145
Page 144
Image 144
Samsung SGH-x475 manual 140
Page 143 Page 145

SGH-x475 specifications

The Samsung SGH-x475 is a compact and stylish mobile phone that was launched in the early 2000s, representing a significant step in the evolution of mobile technology during that era. Aimed at users looking for a blend of functionality and design, the SGH-x475 featured a clamshell design that was not only fashionable but also practical, protecting the screen and keypad when not in use.

One of the standout features of the SGH-x475 is its lightweight construction. Weighing in at a mere 90 grams, it was designed for portability, making it easy to carry around in pockets or bags. The phone showcased a 1.5-inch monochrome display with a resolution of 128 x 128 pixels, which, while modest by today's standards, offered clear visibility for incoming calls, messages, and menu navigation.

The SGH-x475 supported both GSM 900 and 1800 bands, providing users with reliable connectivity across various regions. This dual-band capability was particularly advantageous for users who traveled frequently, as it ensured that they could stay connected across different networks. The phone also featured SMS (Short Message Service) capabilities, allowing users to send and receive text messages, which was becoming increasingly popular at the time.

In terms of battery life, the SGH-x475 was equipped with a removable lithium-ion battery that provided up to 7 hours of talk time and up to 200 hours of standby time. This longevity was essential for users on the go, ensuring that the phone could last through busy days without needing frequent recharging.

The phone incorporated several ringtones and offered a vibration alert feature, providing users with customizable options for notifications. Additionally, it had a built-in speakerphone function, enabling hands-free conversations, which was a budding trend among mobile users seeking convenience.

With a focus on user-friendly design, the SGH-x475 featured a straightforward menu system, making it accessible even for those unfamiliar with mobile technology. The keypad was laid out in a traditional format, with tactile feedback that made dialling and texting comfortable.

Overall, the Samsung SGH-x475 embodied the mobile technology of its time, balancing essential features, portability, and user comfort. Although it may seem basic compared to today’s smartphones, it played a pivotal role in the evolution of mobile communication during the early 2000s, leaving a lasting impact on users looking for reliable and stylish mobile solutions.
Top Page Image Contents