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Cell phones radiation - safer than a tan?

17 Aug 2001 by Irene Tham, ZDNet Asia - ZDNet Asia reports the World Health Organization says radiation absorbing earpieces are ineffective--hands-free kits are the only defense.

If you stick a light-emitting chip at the back of your mobile phone to reduce your exposure to radiation, you might want to consider using a hands-free kit instead.

According to Stephen Chong, Singapore's Health Sciences Authority (HSA) director of Centre for Radiation Protection, the hands-free kit is the "only effective device" recommended by the World Health Organization (WHO) in reducing mobile phone users' exposure to radiation.

Light-emitting devices are currently available from mobile phone accessory shops all over the world. They are commonly known as "radiation absorbing earpieces", among other terms.

One user, Paul Teo, said he was convinced into buying the chip when a shop attendent claimed that the device would reduce his radiation exposure by as much as 30 percent as it "converts" radiowave into light energy.

Not absorbing However, the WHO has concluded that most of the so-called radiation absorbing earpieces are "generally ineffective", Chong told reporters at a press briefing Thursday evening, although he would not comment specifically on those which are being sold here.

Chong said that such gadgets come in various forms. "It could be a wire mesh shield in the shape of a handphone pouch or a ceramic button."

So far, the regulator has received no complaint about the use of these devices, Lim said.

No need for special precaution Even as consumers scramble for a hands-free kit or one of these radiation absorbing earpieces, the HSA CEO Clarence Tan stressed that "there is no need for any special precaution (when using) mobile phones".

This is because local telecommunications regulations ensure that all cellular phones adhere to international safety standards, such as the International Commission on Non-Ionizing Radiation Protection (ICNIRP) in Europe and Federal Communications Commission (FCC) in the US, said Tan.

Specific Absorption Rate (SAR) is so far the best way of measuring mobile phone radiation, showing the absorption of energy by the human body in watts per kilogram (W/kg). The maximum safety limit required by the Singapore government is 2.0 W/kg, he noted.

In addition, Tan claimed that studies of animals exposed to radio frequency fields show no evidence of the exposure directly causing or promoting brain cancer. There is also no scientific evidence of other health risks through mobile phones, he added.

Further research will be conducted by the WHO to conclusively determine the potential harmful effects of long-term explosure to cell phone radiation, Chong added. The study, of which Singapore is a participant, is expected to complete in three to four years.

Even then, many experts have already put forward theories and epidemiological evidence to show that radiation increases risk of cancer.

While the debate goes on, Tan believes that a greater cause of concern remains elsewhere. "The biggest radiation comes from the sun...and many people deliberately expose themselves to it for many reasons, such as to look nice and brown."

3G: The great wireless mystery

March 4, 2001 by Ben Charny, ZDNet News

It's supposedly the greatest thing since sliced bread, but no one--not even the industry cognoscenti--knows for certain when, or where, the next generation of wireless will arrive. Or maybe it's here already?

Just two weeks ago, Qualcomm Chief Executive Irwin Jacobs held the elusive "3G" in his hands.

He was wandering the floor of the Cannes Film Festival using an experimental modem to patch his handheld into a nearby bay station, he told a group of investors at his company's annual meeting this week. Video streamed onto his device. He surfed the Web and patched into a private corporate network.

The billions of dollars spent so far in bandwidth licenses, infrastructure construction and research and development has so far allowed Jacobs to make the jump to the next generation of wireless devices. But when do the rest of us get a crack at playing with the future?

The answers are about as clear as the alphabet soup of standards and chipsets that many blame for the hype, as well as launch delays. Some industry analysts say 3G, or third generation, arrives in May, but only in a limited release in Japan. Others say it's already here, in South Korea. And some say U.S. carriers Sprint and Verizon Wireless will introduce Americans to 3G services by the end of this year.

"The carriers have spent a lot of money on licenses; the manufacturers have spent a lot of money making handsets. Is there pressure to justify that? Absolutely," said Peter Friedland, senior analyst for W.R. Hambrecht.

When will 3G take hold? The question continues to nag, especially after Jacobs himself last week implied that he was worried about the launches of some of Qualcomm's and other companies' 3G products getting delayed.

Financial analysts, no longer dazzled by the latest technology darlings, have been wondering just how telecom companies will find a way to pay off the $100 billion they paid for bandwidth licenses in Europe to operate 3G networks and another $18 billion they paid in a recent auction in the United States. Although the arrival of the technology seems just around the corner, nearly every level of the wireless food chain is under increasing pressure to deliver--or delay at their own peril.

Nearing bottom? But there have been so many bumps to absorb to get to this point that the market may have already taken out its pound of flesh in the form of pummeling the stock values of the wireless players.

"To a certain degree, we may be near bottom," Friedland said.

U.S. carrier Verizon Communications is conducting trials of a 3G network in Boston, and its chief executive has said in the past that the company expects to launch the service for American consumers in 2002. But don't hold him to that, say some industry insiders. "It's tough to say for America in general," one network equipment spokesman said.

"There's tremendous pressure to have 3G come to market," said Perry LaForge, executive director of the CDMA Development Group. Qualcomm's CDMA is one of a number of technology standards that have been developed to power the next generation of handheld devices.

"There's always been pressure there, " said Joe Barrett, a spokesman for Nokia, the largest maker of wireless phones.

So where is 3G?

Qualcomm claims it's already here, in all its video streaming, short messaging glory. The makers of the CDMA2000 chip, which some standards bodies say is worthy enough to be considered third generation, point out that South Korea Telecomm began offering service to Samsung handsets outfitted with the Qualcomm chip last year.

NTT DoCoMo is nearing its release of next-generation technology. The Japanese telecommunications giant last week, amid concerns of 3G delays, reiterated its stance that it will launch its first next-generation service to its customers in May.

But don't expect a huge launch, LaForge said.

"They'll stick a flag in the ground," he said. "It'll be more of a declaration that we're here; we hit our deadline.

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