Knowing Your Cell Phone

No one doubts that a cell phone of the most used consumer electronics worldwide. But have you ever wondered how a cell phone works? What is a mobile phone?

The astonishing fact is on a cell phone that is a radio - a very special. The gurus in the line are Bell () 1876), Tesla (1880) by Marconi and Bose (late 19th century followed. It is known that the concept of cell phone was manufactured by Bell Laboratories with the permission of FCC (Federal CommunicationCommission), and had everything to do with broadcasting and sending a message over the radio airwaves.

In cell phone technology cells divide the city, so that will be used for the plant too often in the city. Million can simultaneously take advantage of it.

For products that are half-duplex (walkie-talkies and CB radios) two communicators use a single frequency. This means that can be accessed at a single point of time we just talk. On the other hand, a cell phone, a fullDuplex tool has two frequencies: one for the interview and the other for your attention. So be a real-time conversations. 1664 channels on cell phones while gliding walkie - talkie group has to content himself with only 40th The walkie - talkie and the CB radio is enough to travel by 1 mile, 5 miles, but the cell phones that can change because of their ability to benefit from cell to cell incredible distances, even while driving at high speed. Each cell isapproximately 10 square miles.

The cells are usually depicted as hexagons. Avoiding the unique frequency levels, all the possibilities of cross-border connections. In general, take a carrier of the phone can benefit from 832 radio frequencies in a city. Each cell phone uses 395 voice channels) (per carrier, that is 56 voice channels per cell. That means 56 people can say the same time, hello on the phone. In digital transmission, the number of channels is increased even further. For each cell phone 168Channels available.

The specificity of cell phones is the low-power transmitters. Most use 2 strengths: 0.6 watts and 0.3 watts. In comparison, it is 4 watts for CB radios. The advantage is that it often consumes less power can be reused. Cell phones are battery operated. The lower the force, the smaller the battery. So that the amount is manageable and easy.

For a city cell phone technology requires a good number of base stations. This can run into several hundredTowers. But because of the large number of users per capita remains very low. Each carrier has a center called MTSO or Mobile Telephone Switching Office. His work is to see all the connections.

Mobile phones have all the codes to allow for the identification of the telephone, its users and their servers. If anyone is tempted to a phone, the first of what is, locate the SID (System Identification Code) on the control channel to find out, if the phone is in range or not reachable. A message relayno service when out of range. But if the SID is replaced, is the next step is to determine whether the call is within its home zone or not. The phone also tracks the location of the phone call on a database. Thus the MTSO knows the cell of the caller and the called number. The communication is transmitted through the control channel, and it is this connection that the phone can be accessed and activated calling.

These are the facts of a cell phone, as for a layman. It is alwaysadvisable to know at least the basics of a cell phone as they become an integral part of our lives.