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For the average television viewer, watching TV involves simply reaching for the remote, turning on the TV and perhaps, set-top-box. You probably never think about how those signals are relayed to your home. Aside from the conventional antenna broadcasting that you receive in analog or digital form, TV service providers now offer you satellite TV, Internet Protocol Television (IPTV), and Cable TV. Here’s an in-depth view of how they work.
TV service stations relay the program data to an uplink facility that transmits the signals to a space radio station or DVB satellite through an uplink satellite dish. The satellite relays the signals back to earth and you receive them via a hyperbolic shape reflector antenna. This antenna sends the signals to the tuner or satellite set-top-box which in turn converts them into the programs you see on TV. If you live in a remote location where you cannot receive other forms of TV such as the conventional antenna broadcasting, Cable TV, and IPTV, so satellite TV is the best choice.
With the availability of H.264 and H.265 technology, it is now possible to receive Full-HD and 4K video streams in compressed form with excellent picture quality. DVB tuners make it possible for you to get this facility.
Up until the year 2000, cable TV providers collected TV channels from different TV stations and relayed them to your home much like ISP. At the time, you could receive only analog RF signals and for this reason, picture quality was not very good. However, post-2000, TV service providers shifted to digital systems that give you high-resolution TV of up to 1920x1080p with a wider choice of channels and programs. Around the same time, cable TV providers also started offering internet services to their subscribers. However, since the bandwidth was shared by the subscribers in a particular neighborhood, signal speed could go down if too many people were using the internet at a given time. If you want to improve your cable TV subscription and get the most of it, follow our guide.
While there are various similarities between cable TV and IPTV, they are different in many ways.
Also called Video on Demand or Media On Demand, IPTV channels are relayed through the internet. Your internet service provider typically includes this service along with internet access by way of Triple Play, a package deal. You’ll receive most of the major TV channels relayed by TV stations to the ISP along with a selection of satellite TV channels. To receive the signals, you must install a VOD (video on demand) set-up box and connect it to the fiber optic modem or ADSL via RJ45. You’ll have an HDMI cable connecting your TV and the set-top-box. If you have an internet subscription, adding TV to the package should be easy.
At present times, you can get a very good selection of Full-HD TV channels in 1920x1080p. When you sign up with the provider, you’ll receive all the devices needed to link your TV to the network.
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