UTStarcom PCS1400 User's Guide download pdf (Page 54)

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SAFETY

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.

11. What about wireless phone interference with medical equipment?

Radiofrequency 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 hearing aids for interference from handheld wireless phones and helped develop a voluntary

standard sponsored by the Institute of Electrical and Electronic Engineers (IEEE). This standard specifies test

methods and performance requirements for hearing aids and wireless phones so that that no interference occurs

when a person uses a “compatible” phone and a “compatible” hearing aid at the same time. This standard

was approved by the IEEE in 2000.

FDA continues to monitor the use of wireless phones for possible interactions with other medical devices.

Should harmful interference be found to occur, FDA will conduct testing to assess the interference and work to

resolve the problem.

Updated July 29, 2003

For more information, please visit the FDA website at http://www.fda.gov/cellphones

SAFETY

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• If you must conduct extended conversations by wireless phone every day, you could place more distance

between your body and the source of the RF, since the exposure level drops off dramatically with distance.

For example, you could use a headset and carry the wireless phone away from your body or use a wireless

phone connected to a remote antenna

Again, the scientific data do not demonstrate that wireless phones are harmful. But if you are concerned about

the RF exposure from these products, you can use measures like those described above to reduce your RF

exposure from wireless phone use.

8. What about children using wireless phones?

The scientific evidence does not show a danger to users of wireless phones, including children and teenagers. If

you want to take steps to lower exposure to radiofrequency energy (RF), the measures described above would

apply to children and teenagers using wireless phones. Reducing the time of wireless phone use and increasing

the distance between the user and the RF source will reduce RF exposure.

Some groups sponsored by other national governments have advised that children be discouraged from using

wireless phones at all. For example, the government in the United Kingdom distributed leaflets containing such

a recommendation in December 2000. They noted that no evidence exists that using a wireless phone causes

brain tumors or other ill effects. Their recommendation to limit wireless phone use by children was strictly

precautionary; it was not based on scientific evidence that any health hazard exists.

9. Do hands-free kits for wireless phones reduce risks from exposure to RF emissions?

Since there are no known risks from exposure to RF emissions from wireless phones, there is no reason to

believe that hands-free kits reduce risks. Hands-free kits can be used with wireless phones for convenience and

comfort. These systems reduce the absorption of RF energy in the head because the phone, which is the source

of the RF emissions, will not be placed against the head. On the other hand, if the phone is mounted against

the waist or other part of the body during use, then that part of the body will absorb more RF energy. Wireless

phones marketed in the U.S. are required to meet safety requirements regardless of whether they are used

against the head or against the body. Either configuration should result in compliance with the safety limit.

10. Do wireless phone accessories that claim to shield the head from RF radiation work?

Since there are no known risks from exposure to RF emissions from wireless phones, there is no reason to

believe that accessories that claim to shield the head from those emissions reduce risks. Some products that

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