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Saturday, December 15, 2007

Motorola RAZR2 V9 Cell Phone


Full Specifications:
Motorola RAZR2 V9 Cell Phone Features

Cell Phone Type : Camera, Digital Player, Video
Cell Network Technology : WCDMA, GSM
Wireless Technology : Bluetooth
Synchronization : MS Outlook
Supported Memory : MicroSD
Megapixels : 2 Megapixels
Screen Size : 2.2 in.
Supported Media Format : MPEG-4, H.263 video and AMR audio
Key Functions : Digital Camera, Digital Player
Connector Types : USB, Mini-USB Type B
Messaging : POP3, IMAP4
Additional Features Pictbridge Direct Printing
Antenna Style : Integrated
Digital Camera : Yes
Included Functions digital camera / digital player
Network Technology : WCDMA (UMTS), GSM 850/900/1800/1900
Vibrating Alert : Yes
Digital Camera Features : Digital Zoom 8 X

Display Display Type : LCD
Display Resolution 240 x 320 Pixels
Display Color : Support Color

Power Managment Battery Technology Lithium Ion

General Product Info Height 4.1 in , Width 2.1 in, Depth 0.5 in
Also known as Motorola MOTORAZR2, Motorola CHANNELRAZR2V9
Manufacturer Part No. 2000341
UPC 723755936812
Dimension 4.1 in x 2.1 in x 0.5 in (HxWxD)

WiFi Technology, 802.11, IEEE

WiFi

If you've been in an airport, coffee shop, library or hotel recently, chances are you've been right in the middle of a wireless network. Many people also use wireless networking, also called WiFi or 802.11 networking, to connect their computers at home, and an increasing number of cities use the technology to provide free or low-cost Internet access to residents. In the near future, wireless networking may become so widespread that you can access the Internet just about anywhere at any time, without using wires
A wireless network uses radio waves, just like cell phones, televisions and radios do. In fact, communication across a wireless network is a lot like two-way radio communication. Here's what happens: A computer's wireless adapter translates data into a radio signal and transmits it using an antenna. A wireless router receives the signal and decodes it. It sends the information to the Internet using a physical, wired Ethernet connection.
802.11 networking (IEEE)
You may be wondering why people refer to WiFi as 802.11 networking. The 802.11 designation comes from the Institute of Electrical and Electronics Engineers (IEEE). The IEEE sets standards for a range of technological protocols, and it uses a numbering system to classify these standards.
802.11n is the newest standard that is widely available. This standard significantly improves speed and range. For instance, although 802.11g theoretically moves 54 megabits of data per second, it only achieves real-world speeds of about 24 megabits of data per second because of network congestion. 802.11n, however, reportedly can achieve speeds as high as 140 megabits per second.

RADAR


Radar is a system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain. A transmitter emits radio waves, which are reflected by the target and detected by a receiver, typically in the same location as the transmitter. Although the radio signal returned is usually very weak, radio signals can easily be amplified. This enables a radar to detect objects at ranges where other emissions, such as sound or visible light, would be too weak to detect. Radar is used in many contexts, including meteorological detection of precipitation, measuring ocean surface waves, air traffic control, police detection of speeding traffic, and by the military. It was originally called RDF (Radio Direction Finder) in Britain. The term RADAR was coined in 1941 as an acronym for Radio Detection and Ranging. The term has since entered the English language as a standard word, radar, losing the capitalization in the process.