BenQ C260 User manual

Copyright © 2003 by BenQ Corporation. All rights reserved. No part
of this publication may be reproduced, transmitted, transcribed,
stored in a retrieval system or translated into any language or com-
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BenQ Corporation makes no representations or warranties, either
expressed or implied, with respect to the contents hereof and specifi-
cally disclaims any warranties, merchantability or fitness for any partic-
ular purpose. Further, BenQ Corporation reserves the right to revise
this publication and to make changes from time to time in the con-
tents hereof without obligation of BenQ Corporation to notify any
person of such revision or changes.
In August 1986 the Federal Communications Commission (FCC) of
the United States with its action in Report and Outer FCC 96-326
adopted an updated safety standard for human exposure to radio fre-
quency (RF) electromagnetic energy emitted by FCC regulated trans-
mitters. Those guidelines are consistent with the safety standard
previously set by both U.S. and international standards bodies. The
design of this phone complies with the FCC guidelines and these
international standards.
Use only the supplied or an approved antenna. Unauthorized anten-
nas, modifications, or attachments could impair call quality, damage
the phone, or result in violation of FCC regulations.
Do not use the phone with a damaged antenna. If a damaged antenna
comes into contact with the skin, a minor burn may result. Please con-
tact your local dealer for replacement antenna.
Disclaimer
Copyright
FCC RF EXPOSURE INFORMATION
Warning! Read this information before using your
phone

Body-worn Operation
To comply with FCC RF exposure requirements, a minimum separa-
tion distance of 0.6 inches (1.5 cm) must be maintained between the
user's body and the back of the phone, including the antenna, whether
extended or retracted. Third-party belt-clips, holsters and similar
accessories containing metallic components shall not be used. Body-
worn accessories that cannot maintain 0.6 inch (1.5 cm) separation
distance between the user’s body and the back of the phone may not
comply with FCC RF exposure limits and should be avoided.
C260 accessories: charger, data cable - optional, earphone - optional.
For more information about RF exposure, please visit the FCC web-
site at www.fcc.gov
Your wireless handheld portable telephone is a low power radio
transmitter and receiver. When it is ON, it receives and also sends
out radio frequency (RF) signals.
In August, 1996, the Federal Communications Commissions (FCC)
adopted RF exposure guidelines with safety levels for hand-held wire-
less phones. Those guidelines are consistent with the safety standards
previously set by both U.S. and international standards bodies:
ANSIC95.1 (1992)'
NCRP Report 86 (1986)
ICIMIRP(1996)
Those standards were based on comprehensive and periodic evalua-
tions of the relevant scientific literature. For example, over 120 scien-
tists, engineers, and physicians from universities, government health
agencies, and industry reviewed the available body of research to
develop the ANSI Standard (C95.1). Nevertheless, we recommend
that you use a handsfree kit with your phone (such as an earpiece or
headset) to avoid potential exposure to RF energy.
The design of your phone complies with the FCC guidelines (and
those standards).
Exposure to radio frequency signals
Body-worn Operation
To comply with FCC RF exposure requirements, a minimum separa-
tion distance of 0.6 inches (1.5 cm) must be maintained between the
user's body and the back of the phone, including the antenna, whether
extended or retracted. Third-party belt-clips, holsters and similar
accessories containing metallic components shall not be used. Body-
worn accessories that cannot maintain 0.6 inch (1.5 cm) separation
distance between the user’s body and the back of the phone may not
comply with FCC RF exposure limits and should be avoided.
C260 accessories: charger, data cable - optional, earphone - optional.
For more information about RF exposure, please visit the FCC web-
site at www.fcc.gov
Your wireless handheld portable telephone is a low power radio
transmitter and receiver. When it is ON, it receives and also sends
out radio frequency (RF) signals.
In August, 1996, the Federal Communications Commissions (FCC)
adopted RF exposure guidelines with safety levels for hand-held wire-
less phones. Those guidelines are consistent with the safety standards
previously set by both U.S. and international standards bodies:
ANSIC95.1 (1992)'
NCRP Report 86 (1986)
ICIMIRP(1996)
Those standards were based on comprehensive and periodic evalua-
tions of the relevant scientific literature. For example, over 120 scien-
tists, engineers, and physicians from universities, government health
agencies, and industry reviewed the available body of research to
develop the ANSI Standard (C95.1). Nevertheless, we recommend
that you use a handsfree kit with your phone (such as an earpiece or
headset) to avoid potential exposure to RF energy.
The design of your phone complies with the FCC guidelines (and
those standards).

Use only the supplied or an approved replacement antenna. Unautho-
rized antennas, modifications, or attachments could damage the
phone and may violate FCC regulations.
NORMAL POSITION: Hold the phone as you would any other tele-
phone with the antenna pointed
up and over your shoulder.
TIPS ON EFFICIENT OPERATION: For your phone to operate most
efficiently:
• Extend your antenna fully.
• Do not touch the antenna unnecessarily when the phone is in use.
Contact with the antenna affects call quality and may cause the
phone to operate at a higher power level than otherwise needed.
Check the laws and regulations on the use of wireless telephones in
the areas where you drive. Always obey them. Also, if using your
phone while driving, please:
• Give full attention to driving - driving safely is your first responsibil-
ity;
• Use hands-free operation, if available;
• Pull off the road and park before making or answering a call if driving
conditions so require.
Most modern electronic equipment is shielded from RF signals. How-
ever, certain electronic equipment may not be shielded against the RF
signals from your wireless phone.
Pacemakers
The Health Industry Manufacturers Association recommends that a
minimum separation of six (6") inches be maintained between a hand-
held wireless phone and a pacemaker to avoid potential interference
with the pacemaker. These recommendations are consistent with the
Antenna care
Phone operation
Driving
Electronic devices

independent research by and recommendations of Wireless Technol-
ogy Research.
Persons with pacemakers:
• Should ALWAYS keep the phone more than six inches from their
pacemaker when the phone is turned ON;
• Should not carry the phone in a breast pocket;
• Should use the ear opposite the pacemaker to minimize the poten-
tial for interference.
• If you have any reason to suspect that interference is taking place,
turn your phone OFF immediately.
Hearing Aids
Some digital wireless phones may interfere with some hearing aids. In
the event of such interference, you may want to consult your service
provider or call the customer service line to discuss alternatives.
Other Medical Devices
If you use any other personal medical device, consult the manufac-
turer of your device to determine if they are adequately shielded from
external RF energy. Your physician may be able to assist you in obtain-
ing this information.
Turn your phone OFF in health care facilities when any regulations
posted in these areas instruct you to do so. Hospitals or health care
facilities may be using equipment that could be sensitive to external RF
energy.
Vehicles
RF signals may affect improperly installed or inadequately shielded
electronic systems in motor vehicles. Check with the manufacturer or
its representative regarding your vehicle. You should also consult the
manufacturer of any equipment that has been added to your vehicle.
Posted Facilities
Turn your phone OFF in any facility where posted notices require you
to do so.

FCC regulations prohibit using your phone while in the air. Switch
OFF your phone before boarding an aircraft.
To avoid interfering with blasting operations, turn your phone OFF
when in a "blasting area" or in areas posted: "Turn off two-way radio".
Obey all signs and instructions.
Turn your phone OFF when in any area with a potentially explosive
atmosphere and obey all signs and instructions. Sparks in such areas
could cause an explosion or fire resulting in bodily injury or even
death.
Areas with a potentially explosive atmosphere are often but not
always clearly marked. They include fueling areas such as gasoline sta-
tions; below deck on boats; fuel or chemical transfer or storage facili-
ties; vehicles using liquefied petroleum gas (such as propane or
butane); areas where the air contains chemicals or particles, such as
grain, dust, or metal powders; and any other area where you would
normally be advised to turn off your vehicle engine.
For Vehicles Equipped with an Air Bag
An air bag inflates with great force. DO NOT place objects, including
both installed or portable wireless equipment, in the area over the air
bag or in the air bag deployment area.
If in-vehicle wireless equipment is improperly installed and the air bag
inflates, serious injury could result.
FDA has been receiving inquiries about the safety of mobile phones,
including cellular phones and PCS phones. The following summarizes
what is known--and what remains unknown--about whether these
Aircraft
Blasting areas
Potentially explosive atmospheres
FDA Consumer Update on Mobile Phones

products can pose a hazard to health, and what can be done to mini-
mize any potential risk. This information may be used to respond to
questions.
Why the concern?
Mobile phones emit low levels of radio frequency energy (i.e., radio
frequency radiation) in the microwave range while being used. They
also emit very low levels of radio frequency energy (RF), considered
non-significant, when in the stand-by mode. It is well known that high
levels of RF can produce biological damage through heating effects
(this is how your microwave oven is able to cook food). However, it is
not known whether, to what extent, or through what mechanism,
lower levels of RF might cause adverse health effects as well. Although
some research has been done to address these questions, no clear
picture of the biological effects of this type of radiation has emerged
to date. Thus, the available science does not allow us to conclude that
mobile phones are absolutely safe, or that they are unsafe. However,
the available scientific evidence does not demonstrate any adverse
health effects associated with the use of mobile phones.
What kinds of phones are in question?
Questions have been raised about hand-held mobile phones, the kind
that have a built-in antenna that is positioned close to the user's head
during normal telephone conversation. These types of mobile phones
are of 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 per-
son's RF exposure decreases rapidly with distance from the source.
The safety of so-called "cordless phones," which have a base unit con-
nected 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 expo-
sures 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:
In a hospital-based, case-control study, researchers looked for an
association between mobile phone use and either glioma (a type of
brain cancer) or acoustic neuroma (a benign tumor of the nerve
sheath). No statistically significant association was found between
mobile phone use and acoustic neuroma. There was also no asso-
ciation between mobile phone use and gliomas when all types of
types of gliomas were considered together. It should be noted that
the average length of mobile phone exposure in this study was less
than three years.
When 20 types of glioma were considered separately, however, an
association was found between mobile phone use and one rare
type of glioma, neuroepithelliomatous tumors. It is possible with
multiple comparisons of the same sample that this association
occurred by chance. Moreover, the risk did not increase with how
often the mobile phone was used, or the length of the calls. In fact,
the risk actually decreased with cumulative hours of mobile phone
use. Most cancer causing agents increase risk with increased expo-
sure. An ongoing study of brain cancers by the National Cancer
Institute is expected to bear on the accuracy and repeatability of
these results.1

Researchers conducted a large battery of laboratory tests to
assess the effects of exposure to mobile phone RF on genetic
material. These included tests for several kinds of abnormalities,
including mutations, chromosomal aberrations, DNA strand
breaks, and structural changes in the genetic material of blood cells
called lymphocytes. None of the tests showed any effect of the RF
except for the micronucleus assay, which detects structural effects
on the genetic material. The cells in this assay showed changes
after exposure to simulated cell phone radiation, but only after 24
hours of exposure. It is possible that exposing the test cells to
radiation for this long resulted in heating. Since this assay is known
to be sensitive to heating, heat alone could have caused the abnor-
malities to occur. The data already in the literature on the
response of the micronucleus assay to RF are conflicting. Thus, fol-
low-up research is necessary.2
FDA is currently working with government, industry, and academic
groups to ensure the proper follow-up to these industry-funded
research findings. Collaboration with the Cellular Telecommunica-
tions and Internet Association (CTIA) in particular is expected to
lead to FDA providing research recommendations and scientific
oversight of new CTIA-funded research based on such recommen-
dations.
Two other studies of interest have been reported recently in the
literature:
Two groups of 18 people were exposed to simulated mobile phone
signals under laboratory conditions while they performed cogni-
tive function tests. There were no changes in the subjects' ability
to recall words, numbers, or pictures, or in their spatial memory,
but they were able to make choices more quickly in one visual test
when they were exposed to simulated mobile phone signals. This
was the only change noted among more than 20 variables com-
pared.3
In a study of 209 brain tumor cases and 425 matched controls,
there was no increased risk of brain tumors associated with
mobile phone use. When tumors did exist in certain locations,
however, they were more likely to be on the side of the head
where the mobile phone was used. Because this occurred in only a
small number of cases, the increased likelihood was too small to be
statistically significant.4

In summary, we do not have enough information at this point to
assure the public that there are, or are not, any low incident health
problems associated with use of mobile phones. FDA continues to
work with all parties, including other federal agencies and industry, to
assure that research is undertaken to provide the necessary answers
to the outstanding questions about the safety of mobile phones.
What is known about cases of human cancer that have been
reported in users of hand-held mobile phones?
Some people who have used mobile phones have been diagnosed with
brain cancer. But it is important to understand that this type of cancer
also occurs among people who have not used mobile phones. In fact,
brain cancer occurs in the U.S. population at a rate of about 6 new
cases per 100,000 people each year. At that rate, assuming 80 million
users of mobile phones (a number increasing at a rate of about 1 mil-
lion per month), about 4800 cases of brain cancer would be expected
each year among those 80 million people, whether or not they used
their phones. Thus it is not possible to tell whether any individual's
cancer arose because of the phone, or whether it would have hap-
pened anyway. A key question is whether the risk of getting a particu-
lar form of cancer is greater among people who use mobile phones
than among the rest of the population. One way to answer that ques-
tion is to compare the usage of mobile phones among people with
brain cancer with the use of mobile phones among appropriately
matched people without brain cancer. This is called a case-control
study. The current case-control study of brain cancers by the National
Cancer Institute, as well as the follow-up research to be sponsored by
industry, will begin to generate this type of information.
What is FDA's role concerning the safety of mobile phones?
Under the law, FDA does not review the safety of radiation-emitting
consumer products such as mobile phones before marketing, as it
does with new drugs or medical devices. However, the agency has
authority to take action if mobile phones are shown to emit radiation
at a level that is hazardous to the user. In such a case, FDA could
require the manufacturers of mobile phones to notify users of the
health hazard and to repair, replace or recall the phones so that the
hazard no longer exists.

Although the existing scientific data does not justify FDA regulatory
actions at this time, FDA has urged the mobile phone industry to take
a number of steps to assure public safety. The agency has recom-
mended that the industry:
• support needed research into possible biological effects of RF of
the type emitted by mobile phones;
• design mobile phones in a way that minimizes any RF exposure
to the user that is not necessary for device function ; and
• cooperate in providing mobile phone users with the best possi-
ble information on what is known about possible effects of
mobile phone use on human health.
At the same time, FDA belongs to an interagency working group of
the federal agencies that have responsibility for different aspects of
mobile phone safety to ensure a coordinated effort at the federal
level. These agencies are:
• National Institute for Occupational Safety and Health
• Environmental Protection Agency
• Federal Communications Commission
• Occupational Health and Safety Administration
• National Telecommunications and Information Administration
The National Institutes of Health also participates in this group.
In the absence of conclusive information about any possible risk, what
can concerned individuals do?
If there is a risk from these products--and at this point we do not
know that there is--it is probably very small. But if people are con-
cerned about avoiding even potential risks, there are simple steps they
can take to do so. For example, time is a key factor in how much
exposure a person receives. Those persons who spend long periods
of time on their hand-held mobile phones could consider holding
lengthy conversations on conventional phones and reserving the hand-
held models for shorter conversations or for situations when other
types of phones are not available.
People who must conduct extended conversations in their cars every
day could switch to a type of mobile phone that places more distance
between their bodies and the source of the RF, since the exposure
level drops off dramatically with distance. For example, they could
switch to: