The Facts on Cellular Phones

Cellular phones got there name from the fact that each service area is divided into small service
areas called CELLS.
Each cell is serviced by a low power transmitter. Cell Sites are strategically
positioned throughout the coverage area to provide optimum coverage. As you drive along
the highway your call is automatically handed off to the next nearest cell site.
Cellular systems provide many great features like:
Nationwide compatibilty
Excellent Voice quality
Data transmission capabilities: >
FAX, Computer Modem
Advanced telephone features: > Call forwarding, Call waiting, Conference Calling

There were two basic types of phones Portables and Mobiles and many different manufacturers.

Portable cellular phones operate at .6 Watts and are for use within
a city or along a highway with cellular towers. Units are light weight
and have a talk time of 30 to 140 minutes and standby time can be
up to 24 hours per battery charge.

Mobile cellular phones operate at 3 Watts of power the most you
can get (great for use in rual aeras) and are permanently installed
in your vehicle. They draw power from the vehicles battery and need
a external antenna installed on the vehicle. They can come
with many usefull features like hands-free speaker phone, leting
you keep both hands on the wheel (safer driving) and ext. horn
alert (for when you are out of the vehicle). Installation typically
takes 2-4 hours and costs between $75 & $150.

There is another hybrid type of cellular phone called a CARRY PHONE.
It normally is a mobile cellular phone installed into a CARRY BAG.
This phone is designed to be moved easily from vehicle to vehicle and
draws power from the vehicles cigarette lighter jack.

And then came Digital Cellular

In the past several years, new, improved options have emerged for cellular users: digital service. Digital service is more advanced in terms of communication, in that they offer better quality hardward, clearer transmissions and give users far fewer busy signals.
Most phones sold today are digital. (NOTE: Digital Phones only come in portable models)

Portable Digital cellular phones operate at less than .5 Watts and are for use within a city or along a highway with cellular towers. Units are light weight and have a talk time of 100 to 280 minutes and standby time can be up to 100 hours per battery charge.

Why Digital?
Most nationwide wireless service providers have a digital network in place or are at least in the process of trying to convert their cellular network to a digital network. The reason is digital presents many advantages over cellular, say proponents. The main benefits of digital include better quality of service, more security for the customer, and the ability to support next-generation services. Operators are looking to digital technology to help enable the whiz-bang services of tomorrow, like wireless Internet applications.

Digital is known to up the efficiency in the network, meaning an operator can fit more information into each transmission; that's why so many are now converting their systems to digital. For a wireless operator, this means that they can get more bang for their buck, or more juice from their network. Operators using digital would also be able to supply their customers with the hottest new services that were being talked about at water coolers everywhere.

Multimode phones
Multimode phones can operate on either an analog or digital transmission network, allowing you to maintain a connection whether you're in a digital service area or analog only service area. If you plan to use your phone in rural areas where digital service may not be available, a multimode phone is the most sensible choice.

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