To receive the Satellite channels, the Satellite receiver or Satellite Set-Topbox required.
There are various types of boxes available in the market which are......
HD Satellite Receiver FTA (free to air)
SD Satellite Receiver FTA
HD Satellite Receiver With Smart card Felicity for PAY TV
SD Satellite Receiver With Smart card Felicity for PAY TV
Usually a satellite receiver can receive KU-band( small dish antenna) signals and C-Band (larger dish antena) signals. These days the Ku-Bnd signals are most common.
IPTV is a system which Television and Video content is delivered using the networking methods(internet protocol) such as TCP IP or UDP etc.
IPTV started in 1994 by ABCNews.
The modern IPTV system is capable carrying HDTV.
Mainly there are 2 types of IPTV system
IPTV OVER ETHERNET or LAN
You can find IPTV over Ethernet in community buildings, Hospitals, schools or big building. These buildings equipped with their own IPTV headend system which capture the Digital Television channels or Radio from Satellites,Camera, or any other sources such as a DVD or a composite video. These video content than distribute through the building's existing MULTICAST enabled LAN network.
Without a MULTICAST enabled LAN network the IPTV will not work effectively.
IPTV VOD: Along with Live Television channels the VOD server(video on demand) required for the VOD service. According to the simultaneous users and storage capacity the IPTV VOD server will have different types configurations.
IPTV OVER INTERNET
The channel provider location is always remote. The channels is distributed through very high speed Broadband. Some areas with limited internet speed will not get this kind of service.The advantage of IPTV over internet is, the user can get the channels world wide.
For successful distribution of IPTV the following equipments should used
In this type of system each subscribers can directly receive the channels from the satellite without altering or changing the original content. So the quality will be always optimum compared to other technologies such as CATV or MATV. The signals will be distributed using Multiswitches, Amplifiers and Taps. Maximum up to 32 satellite polarity input available in the modern SMATV systems (Spaun). But 16(16 SAT+1 Ter) Polarities are common.Others are.
12 inputSMATV system (12 SAT+1 Ter)
8 input SMATV system (8 SAT+1 Ter)
5 input SMATV system (5 SAT+1 Ter)
Below find Some of the other features.
To view the channels each user need to purchase Satellite Receiver/Decoder individually.
There is no channel limitation or restriction like CATV. All the channels transmitted from the connected satellites can watch. Also whenever a new channel available the user can tune it himself without any additional expense.
To watch the pay channels Each user need to subscribe individually.
The satellite signals will reach most difficult part of the world where cable TV is not available
SMATV's system can carry MATV and CATV along with satellite signal.
SMATV's Compatible with Cable internet (with return path compatible smatv system.
Conclusion
Satellite considers as the most reliable technology in the world for broadcasting.
MATV: (Master Antenna Television)
In MATV systems there will be a common sets of TV Antennas & FM Antennas connected using the RF amplifiers, Taps & splitters the signal will be distributed in the entire community building. Usually a standard TV can directly receive the channels without any additional equipment if it is in free to air mode. For pay channels you may need to use a set-top box. The channels could be Analogue or digital. Most of the MATV network is very old which is installed years before. These days the analogue channels shifted to digital mode and it is possible to use the old network for that purpose with small alteration.
CATV: (Community Antenna Television or Cable Television)
In a CABLE TV system, combinations of selected channels(Max. approx.100 Ch in analogue Cable). Using a Standard TV each user can receive the available channels in the Cable system.
Here find the standard features
Usually to view a pay channel the subscriber no need to pay the subscription fees.
SMATV (Satellite Master Antenna Television System), A community Distribution system for signals received from multiple satellites, Terrestrial channels & Radio. These signals will be mixed with the help of “MULTISWITCH” and distributed with a single and separate cable to each household in the community building.
The size of the network varies small to large. This may be a small 5 floor building with 50 subscribers or 50 floor building with 1,200 subscribers. For huge buildings were coaxial cables is inappropriate, fiber optic technology can incorporate with SMATV equipments. With modern equipments any type of SMATV network can be constructed with ease.
The advantage of the SMATV is, all homes in the community-building can share the installed satellite antenna no need a separate one for each user. Also when there is any new channels available in the connected satellites the subscriber can tune himself no need to purchase new equipment where in CATV huge investment required with technical expertise to add the new channels.
In a traditional CABLE TV network there is limitation of available channels(max 100 to 104) But In a SMATV network with a 17 input system the number of channels is huge (4000+) The user can select the channels they want from the connected satellite dish.
Advantage of the Analogue CATV over SMATV is, STB or Receiver not required to view the channels but in the SMATV a A Satellite receiver is required. (note: in the Digital CATV system a STB/cable receiver is required)
SMATV
With 17 input system total 16 satellite polarities+1 Terrestrial input can be used which will cover total 4 satellites with 4 polarities each. If you connect the terrestrial input, it can be received in the subscriber point along with satellite channels.
With 9 input system total 8 satellite polarities+1 Terrestrial input can be used which will cover total 2 satellites with 4 polarities each. If you connect the terrestrial input, it can be received in the subscriber point along with satellite channels.
With 13 input system total 12 satellite polarities+1 Terrestrial input can be used which will cover total 3 satellites with 4 polarities each. If you connect the terrestrial input, it can be received in the subscriber point along with satellite channels.
Internet Protocol Television (IPTV) is digital television delivered on your television (and not PC) through high speed internet (broadband)
connection. In this service, channels are encoded in IP format and delivered to the TV through a set top box. IPTV service also includes video on demand, which is similar to watching video CDs/DVDs using a VCD/DVD player.
How does it work?
IPTV converts a television signal into small packets of computer data like any other form of online traffic such as email or a web page. There are three main components of IPTV. First, the TV and content head end, where the TV channels are received and encoded and also other content like videos which are stored. The second component is the delivery network, which is broadband and landline network provided by a telecom operators such as MTNL.
The third component is the set top box, which is required at the customer location. The packets are reassembled into programming by software in the set-top box. This box is connected between the operator’s broadband modem and customer’s TV.
What are the advantages of IPTV?
The quality of digital video and audio is much better compared with the traditional analogue TV. With additional features, it can become interactive. For example, viewers may be able to look up a player’s history while watching a game. They also may be able to schedule a recording of their favourite programme when they are not home. With video on demand, they can browse an online movie catalogue and watch the movies instantly.
Because IPTV uses standard networking protocols, it promises lower costs for operators and lower prices for users. Using set-top boxes with broadband internet connections, video can be streamed to households more efficiently than cable.
What are the limitations of IPTV?
Because IPTV is based on internet protocol, it is sensitive to packet loss and delays if the IPTV connection is not fast enough.
When was IPTV service first used?
In 1994, ABC’s World News Now was the first television show to be broadcast over the internet, using the CU-SeeMe video conferencing software. Internet radio company AudioNet started the first continuous live webcast in January, 1998.
When was IPTV rolled out in India?
Public sector operator Mahanagar Telephone Nigam (MTNL) is the first and only telco in India providing IPTV services. It rolled out IPTV early this month in Mumbai and Delhi. The original 26 channels it launched were free-to-air, while the new lineup includes premium subscription channels. It has not yet announced tariff plans, which will vary depending on the number of channels a user subscribes to and the use of premium services.
Who are the other telcos planning IPTV services?
Bharti Airtel is readying for launch while Reliance Communications has also been undertaking trials for IPTV for over a year now. BSNL is expected to roll it out by January next year. Since IPTV is delivered through landline connection, telcos like Hutchison Essar and Idea Cellular will not be able to offer the service right now as they do not have fixed line networks.
