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The Rise of the Cell Phone

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Submitted By karenlearns
Words 1684
Pages 7
Mobile Phone is a wireless device that emits RFR (radio-frequency radiation) to transmit data and allows people to communicate anywhere. It can be carried anywhere as long as there is a signal transmission. There are three types of Mobile coverage, which are: AMPS, GSM and CDMA

AMPS (Analogue Mobile Phone System)
It is an analogue signal and system for transmit data and be used for mobile communication. The strength of this system is it has a better network coverage than GSM. However it is the most insecure mobile phone. This system is also going to be closed in Australia until end of 2000 as the government states that analogue signal make the frequency too crowded.

GSM (Global System for Mobile Communication)
It is a digital system that converts from our voice to digital (pulse) and transmits it to air for mobile communication. The strength of this system is it is more secure than analogue system. On the other hand, the weakness is the signal is not as strong as analogue system.

CDMA(Code Division Multiple Access)
It uses a digital systems but it is not pulsed as GSM did. The strength of this system is it has the best signal receiver, and it is secure communication. However, it is just being introduced in Australia and the rest of the world.

Network Provider in Australia

Optus
Optus stated that they have 93% population coverage, which means, the capacity of the network that Optus can carry is up to 93 % of total population. It also has strength, which it has the lowest congestion rate (making and receiving call)

Telstra
Telstra stated that they have 94% population coverage, which means they can carry up to 94 % of the total population. Their strength is they have better network signal compare to other competitors.

Vodafone
Vodafone have 91% population coverage. Their strength is they are international recognition so people will believe

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