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When you receive a customer call on your CDMA phone, it converts your voice to digital data, and the wireless system tags your conversation with a unique code.
Though the local signal contains hundreds of other calls, you hear only yours because of the code. High Capacity CDMA gives a cellular service company high capacity because it shares the same local wireless signal with many customers.
It has up to 10 times the capacity compared to earlier analog cellular technologies and up to five times that of Global System for Mobile communication, or GSM-based, services.
Greater capacity means far less likelihood that the service drops your call or cannot connect you because of heavy system use. Strong Security A CDMA voice call is not only a digital data stream, it is an automatically encrypted one that is very difficult to intercept and eavesdrop; even if a well-equipped listener could tune into the frequency, he would need to know your code to decode the conversation.
As with the secure on-line transactions you have with your bank and Web-based stores, CDMA mixes the data that constitutes your call with pseudo-random bits, resulting in a signal that appears as nonsense to an outsider.
CDMA provides secure communications for the military, for example, as the technology resists interference from jamming and other threats.
Verizon, Sprint and U. You can travel the country and have good cellular service in most areas.New generation of iPhone has been officially available and it comes in two versions this time, the iPhone 6 and iPhone 6 Plus.
Apart from considering between a inch and a inch iPhone, consumers also have to deal with choosing among different models, including A, A, A, A, A .
For novel ideas about building embedded systems (both hardware and firmware), join the 28,+ engineers who subscribe to The Embedded Muse, a free biweekly srmvision.com Muse has no .
About Sekhar. Sekhar joined Award Solutions in , and has over 16 years of experience in wireless telecommunication industry with mobile cellular, digital communications technologies. Advantages and Disadvantages Global Positioning System GPS stands for global positioning system which was created by US department of defense.
There are several advantages of GPS at present and in contrast to that there are some disadvantages also. Cellular Systems.
Cellular systems implements Space Division Multiplexing Technique (SDM). Each transmitter is called a base station and can cover a fixed area called a cell.
Mobile phone tracking is the ascertaining of the position or location of a mobile phone, whether stationary or srmvision.comzation may occur either via multilateration of radio signals between (several) cell towers of the network and the phone, or simply via srmvision.com locate a mobile phone using multilateration of radio signals, it must emit at least the roaming signal to contact the next nearby.