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WIRELESS TECHNOLOGY TERMS CHART

 
     
     
 
  Pupose Frequency Range Speed Devices
           
802.11a Wireless Internet access 5GHz 25 to 75 feet indoors; range can be affected by building materials Up to 54Mbps Laptop computers, PDAs, cell phones
           
802.11b (Wi-Fi) Wireless Internet access 2.4GHz Up to 150 feet indoors; range can be affected by building materials Up to 11 Mbps Laptop computers, PDAs, cell phones
           
802.11g Wireless Internet access 2.4GHz Up to 150 feet indoors; range can be affected by building materials Up to 54Mbps Laptop computers
           
Bluetooth Wirelessly connect computer peripherals, such as printers, PDAs, cameras 2.4GHz Up to 33 feet (10 meters); range can be affected by building materials 720Kbps Printers, cameras, cell phones, PDAs, other peripherals
 
           
GSM Digital cellular telephone system; most-used system worldwide 900MHz, 1,800MHz, 1,900MHz Determined by host network Determined by host network GSM-enabled cell phones, PDAs, pagers
           
GPRS An interface overlaid on existing GSM networks to allow for Internet access Determined by host network Determined by host network Theoretical maximum speed of 171Kbps; reality is 40-50Kbps GPRS-enabled cellular phones and networks
           
CDMA Digital telephone system 800MHz, 900MHz, 1,700MHz, 1,800MHz, 1,900MHz Coverage area of host network 14.4Kbps data rate; a revised CDMA standard offers 64Kbps Mobile phones on CDMA networks
           
CDMA2000 Third generation CDMA-based network Any existing band Coverage area of host network 144Kbps; future speeds are estimated as high as 4.8Mbps Mobile phones on CDMA2000 networks
           
CDPD System used to transmit data over analog cellular networks 800MHz, 1,900MHz Coverage area of host network 19.2Kbps data rate Cellular phones, PDAs, pagers
           
TDMA Digital cellular telephone systems 800MHz, 1,900MHz Coverage area of host network 64Kbps to 120Kbps data rates TDMA cellular phones
 
     
     
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