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Compare the effectiveness of different transmission methods.

Extracts from this document...

Introduction

´╗┐unit 10 communication technologies D2 compare the effectiveness of different transmission methods. Comparison of the effectiveness of different transmission methods are chosen in particular situation for a technological technology has progressed to a number than any other technology has ever progressed to, thus this progress has enabled for data to be transmitted using wireless technology. The following, mobile phones, radio, microwave and the internet are all a type of communication methods that use the technological advancement in wireless data transmissions. The wireless data transmission is a type of system that will transmit invisible electromagnetic waves to transmit data over a long/short range within a short amount of time. Of course there are many more ways to transmit information or data signals over a transmission method and this is only one way to send information or data signals. Radio: effectiveness of different transmission radio is basically a wireless media that transfers data by carrying electromagnetic waves with maybe long or short transmission (frequency) to distant or close by location in just a very short amount of time and it does that through the electrical conductor and the antenna that is attached to the radio. The electromagnetic waves that the radio sends with either the low and long frequency are regulated by the federal communication commission (FCC) ...read more.

Middle

One type of method that the infrared uses to transmit data or information is a point to point system, which entails a laser data transmission between two lines limited to a line of sight range. This method is very conductive to the threats of privacy and eavesdropping. Another very useful and helpful way of getting somewhere is the broadcast system it is a reflective material or a transmission unit that amplifies and retransmits a data signal to disperse the signal to several other units so that they are able to receive it too as well as the first receiver. The speed of the infrareds transmission is 1 Mbps and increasing, its frequency is 100 GHZ to 1,000 THZ. Effectiveness of different transmission Serial transmission Bits are transmitted to location one bit at a time through a single wire this is called a serial transmission. This transmission is only used in occasion where the location is a very long distance so by using the serial transmission the data shall be delivered their one bit at a time, it might be slow but it is efficient enough that it transmits the data there. It is normally used to transmit data to different computers or to an external device that is at a long distance to the sender. ...read more.

Conclusion

The core of these two is copper therefore this is a very good conductor and it is also easy to work with. In these two cables, the single wires are twisted to cut out crosstalk which is when they intermingle with each other. The STP cable has a shield round it which is a metallic coated plastic foil and is within the plastic sheath that is used block electromagnetic interference. These two devices work at 10 gigabytes and are used for network connection, to send and receive data. As UTP has no shield it is vulnerable to radio frequency and electromagnetic interference. Effective different of transmission methods networks rushes mountains of data through transmission lines at remarkable rates, but the network is only as strong as its infrastructure. Unshielded twisted pair (UTP) is a very popular type of cable that basically consists of two unshielded wires twisted around each other. It is used for LANS (Local Area Networks) and telephone connections, mainly because it is very cheap. Shielded twisted pair (STP) is basically a type of copper telephone wiring in which each of the two copper wires that are twisted together are coated with an insulating coating that functions as a ground for the wires. Additionally, the extra covering in shielded twisted pair wiring basically protects the transmission line from electromagnetic interference leaking into or out of the cable. ...read more.

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This piece of work goes some way to addressing what is being presented as the task of comparing the effectiveness of different methods of data transmission. It does have some useful information and it is factually accurate in places.

A fundamental requirement of any sort of comparison are things to use to make the comparison - in other words "CRITERIA". Some criteria have been hinted at but not mentioned consistently. For example

Marked by teacher Ad Son 03/01/2013

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