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Tampilkan postingan dengan label satellite phone. Tampilkan semua postingan

Minggu, 06 Juni 2010

Can Cell Phones Harm Your Health?

It seems like everywhere a person goes there is at least one person in view with a cell phone to their ear whether it is on the road, in a store, in a parking lot, walking down the street, etc. Even in places where cell phone usage is banned such as concert halls or movie theaters there is the occasional offender, or more likely, at least a few people using the text messaging feature on their phone.

Cell phone usage has exploded over the past decade and continues to rise. Nearly two hundred million people in the United States have cell phones and there are well over one billion users worldwide. That means there are a lot of phones sending their frequencies over the airwaves at any given time.

Concern has arisen over whether or not cell phone usage can harm a person’s health. Brain cancer rates in the United States have risen since cell phones were introduced, leading some people to wonder if cell phone usage is the reason for the increase.

There have been reports of people developing brain tumors in the exact same spot where they held their cell phone. Some studies have expressed concern over long-term cell phone use, believing it can lead to a person to develop cancer. That is not to say a person who uses a cell phone is going to get cancer, but some studies suggest long-term use increases a person’s risk.

Things may not be all gloom and doom however. A large study done in Denmark with almost a half million cell phone users showed no increase in cancer for cell phone users.

Yet, other studies have concluded there is a greater risk of cancer but only with analog phone users. Some other studies conclude that any type of cell phone usage can raise a person’s risk for developing cancer. There are a lot of varying opinions on the subject. According to the FDA, available data does not show there are definitely health problems associated with using wireless phones, but the information goes on to say that there is also no proof that wireless phones are completely safe either.

What about cell phone usage is causing the concerns and the numerous studies to be done? Cell phones emit radiation when they are used. The levels are low and are the same type of radiation as a microwave oven emits but in much smaller amounts.

It has been suggested that using hands free sets can alleviate the problem of the head being exposed to the radiation. Again opinions vary. Some studies say it does not decrease the amount of radiation exposure at all. Other studies say it significantly decreases the amount of radiation exposure.

Some people say the biggest danger with cell phones isn’t from the either real or perceived potential to develop cancer, but from inattentiveness while using the cell phone. How many of us have seen vehicles driving somewhat erratically down the road and then see when we get near the vehicle that the driver is talking on a cell phone. It is a proven fact that a driver on a cell phone is less attentive and more likely to get in an accident. And, hands free sets aren’t the answer that some people may believe. Yes, they free up both hands for driving and prevent a person from getting a sore arm, but the driver’s mind is still occupied with the conversation and therefore less attentive to what is going on around him or her on the road.

Even people who are walking and talking on a cell phone at the same time can put themselves in more danger because they are not as aware of what is going on around them.

All the conflicting reports make a person wonder what they should do. The good news is that more comprehensive studies are being done to see if cell phone usage does or does not cause cancer. At the same time, manufacturers are working on new processes that will decrease or even possibly eliminate a person’s radiation exposure. Until more definitive answers are given, a person may want to avoid talking on a cell phone for several hours every single day, but a person probably does not need to feel like they should have to give their cell phone up. It is still a great tool.

The advice about driving and talking on a cell phone is the same as it has been though. A person should pull over in a safe area out of traffic before engaging in a cell phone conversation.

Rabu, 05 Mei 2010

Which Wireless Plan And Phone Should I Buy

“Which cell phone should I buy” is a question a lot of people ask, but it is one that doesn’t have an easy or simple answer. That’s because there are so many cell phone choices and plans available today, and different people have different needs and different reasons for wanting to get a cell phone. If someone is looking for a cell phone to carry just for emergencies or if their vehicle breaks down, a basic phone with a low cost plan is all that is needed. A prepaid phone with minutes that do not expire quickly is another good choice. On the other hand, if someone wants to have a phone to use as their primary mode of communication and also wants to be able to store information in it, a combination cell phone and PDA might be the best choice. A calling plan that includes a significant number of calling minutes that can be used any time would probably also be a good choice for that person. The first step in buying a wireless phone and calling plan is to get out a piece of paper and a pen. Write down the reasons why you are going to purchase a cell phone along with what you are going to use it for. Think about how many minutes a month you will probably be using the phone. If you plan on using the phone often you will want a plan that has a lot of “anytime” minutes, not just minutes that can be used at night and on weekends. Where is the phone going to be used? Will you be using it primarily in the area you live and work or do you travel frequently? If you travel frequently and plan to take your phone with you, a plan that gives you nationwide coverage is a good choice. If you travel out of the country frequently, look for a phone that can be used internationally. If you plan to use the phone extensively in your home area, look for a local or regional plan that offers a lot of minutes during the times you plan on using the phone. If you want to be connected with your spouse and children, a family plan is a good choice. Look for a family plan that lets family members talk to each other as much as they want without using any of their plan minutes. Look for specials on phones. Wireless companies often offer specials deals when purchasing a family plan (and other plans as well). It is sometimes possible to get phones for the entire family for very little money or even free with a contract commitment to keep the service for a certain period of time, usually two years if you want to get the best deal. Some people want to be able to have short and quick conversations. For those people a push-to-talk phone may be a great idea because it allows quick conversations that do not count against a person’s plan minutes. One caveat; the other person or people you want to have a conversation with also have to have a phone with push-to-talk capability in order for a push-to-talk conversation to be held. If the ability to text message is important check to see how much text messaging is going to add to the cost of your plan each month. Text messaging is most popular with teens. Many adults however would rather call someone than try to type a text message into a cell phone that has tiny keys, and most cell phones do. If you do a lot of text messaging, a stylus (the type used with PDA’s) can make typing messages much easier. One of the most important considerations is your budget. How much can you afford to spend each month? Even low cost plans can start to get costly if a lot of additional features are added to the basic plan such as text messaging, picture messaging, Internet access, and any of the myriad of downloads that are available from ring tones to games to the latest news and sports scores. Optional insurance on a phone also adds to monthly costs. Depending on the wireless company you use, the monthly phone insurance cost is approximately four to six dollars. Insurance may be a good idea if the phone isn’t always going to be handled with care or if it is a picture phone, because one hard fall on concrete can ruin the picture-taking capabilities of a picture phone. Take time to consider how many minutes you will realistically use. Although the charges for going over plan minutes can be costly (usually at least 40 cents a minute with the exception of some plans that allow for overages and charge a reasonable fee), most people don’t ever get even close to using all their minutes each month. If you are not sure how many minutes you will use, choose a mid-range plan and closely track your minute usage for three months. Then adjust your plan accordingly. If you are not a person that wants to commit to a one or two year contract, a pay as you go plan is probably the best option. There is no long term commitment and most of the major wireless carriers now offer a pay as you go package. Another big consideration is coverage. Some of the major carriers do not have good coverage in some areas so also check with the local and regional companies in your area to see what their coverage areas are. Probably the best way to find out how good the coverage is in your area is to talk to family and friends who already have cell phones. Ask them what their reception is like and if there are any areas where it is so poor that conversations are nearly impossible. Also ask how often they have dropped calls. Those pieces of information will give you a good idea of how good the coverage really is in your area. Once you decide on a company, a plan, a phone, and your contract is signed; use the fifteen or thirty day return period that many companies now offer to use your new phone in all the areas you will most often use your phone. If the phone does not work well in those areas, do not be afraid to return the phone and try a different carrier. Be aware that even though coverage areas are quickly getting more expansive, there are still areas that do not have very good coverage no matter which carrier is chosen. There are lots of phone choices available. Many plans offer decent quality phones for a nominal cost or for free with the contract commitment. Phones can be free or cost several hundred dollars. Shop around. Try out phones. Get a phone that you like and can easily use. Many people overbuy on their phone. They want all the latest features and gadgets but hardly ever use them. For instance, picture phones are very popular right now but most people who have a picture phone hardly every use it. Do not let an overzealous salesperson talk you into the latest and greatest phone unless that is what you want. In the end, the choices are yours to make. By doing some planning, research, and by shopping around before buying, you will be able to make an informed decision based on your needs, wants, and budget; and will have a plan and phone you are comfortable with.