Busy businessmen can now close deals with clients on their cell phones in the middle of the street while getting something to eat at a local street vendor. Real-time market data updates can be sent to a Palm Pilot on the other side of the globe instantaneously. A mother on vacation in Geneva can conduct a video-conference call to her loved ones back home via a laptop and wireless modem. People can be easily contacted in case of emergencies. Doctors can be paged if on of their patients are fatally ill. A student can immediately reach his college professor in reference to a question he may have about an upcoming test. Wireless telecommunications has provided a convenience to many and has become part of our everyday lives. For without this technology it would be very difficult to get by.
Wireless describes the products and standards that allow communication without additional electronic connections. Electronic waves traveling through the air carry information from one place to another. Wireless applications operate at various frequencies which vary tremendously depending on the specific device and the application being used. For example, Cellular phones operate at 824-849 Mhz and 869-894 Mhz. ISM band wireless LAN's and Part 15 devices such as cordless phones operate between 902-928 Mhz. Other examples of wireless devices and applications are pagers (alphanumeric, two-way, & three-way) PDA's, wireless modems and NIC cards for laptops. .
The need to keep in touch has fueled the drive for innovation in the Wireless Communication Industries. Bluetooth Technology is a perfect example of the next big standard. It has revolutionized the personal connectivity market by providing freedom from wired connections - enabling links between mobile computers, mobile phones, portable handheld devices, and connectivity to the Internet. You can interface, synchronize and exchange information between various peripherals.