Broadcasting Systems

Broadcasting

Broadcasting is the content of audio or video being distributed to the audience. This can all be achieved through the use of television, radio or other it is most common to be used so often is digital transmission media. The people who receive this tend to be the general public.

Forms of Broadcasting

There are many forms of broadcasting systems. These being; Telephone, Radio broadcasting, Television, broadcasting, Cable, radio, Satellite, Television and Webcasting.

Bandwidth

The range of the signals in broadcasting is titled ‘bandwidth’. Bandwidth being the difference between the lower and the upper frequencies. It tends to be measured in hertz. Bandwidth is key concept in any telephony applications

Narrowcasting

The total opposite of broadcasting, which is to a large number of people is narrowcasting which is the transmission of the data to a certain selection of recipients. A good example of narrowcasting is ‘cable’. This is because the signals for cable are sent only to certain homes which have subscribed to the service. The contrast as supposed to the cable would be terrestrial TV which uses a model of antenna which receives the signals from the broadcast model. This is available to everyone Who owns a ‘terrestrial TV’

 Radio waves

Radio waves tend to be sent from the transmitter to an antenna and the to the receiving device, which is most commonly used in radio broadcasting.

Television broadcasting

The first television broadcast in Britain was made by Baird Television system over a BBC radio transmitter in 1929. Baird only allowed five programmes on a day by 1930. 

Due to the Second world war in 1939, BBC was suspended for six years from September1st 1939 until June 7^th 1946.

Satellite television

(Direct broadcast satellite)

Satellite television is also referred to as ‘direct broadcast satellite’ allows people to receive hi definition interactive television. There will also be no worries about terrain getting in the way of the signal. An example of satellite television could be Sky TV.

Cable Tv

Can arguably be classed as broadcasting or narrowcasting ?

Cable television is the system which provides television to consumers using radio frequency signals which are transmitted to there televisions using fixed optical fibres. This is very similar to the over-the-air method which is used for the traditional television broadcasting, although an antenna is required. A good example of cable is ‘Virgin Media’.

Digital Broadcasting

Digital broadcasting is the practice of using data which is digital as supposed to analogue waveforms in order to carry broadcasts over the television channels. Digital broadcasting tends to use a ‘multiplex’ which allows us as the audience to view several channels together all running through one bandwidth.  An example of this being Freeview

Convergence.

Convergence is when two things come together and form one strong outcome. A very good example of this is when Internet came together with tv to form internet TV.

Internet TV

Internet television is when TV is distributed through the internet. This is growing to be very popular in the 21^st century. It is very beneficial as it is very convenient, I say this because it is at our finger tips and we can view it in our own time.

Personally out of all of these I would prefer internet TV and satellite television, I say this because it seems to be the most responsive as compared to the others. This is because of the quality of the both of them is of a high standard. Also internet TV is more practical for the audience. Also satellite TV is less to worry about the signal being interfe