Component is the latest in satellite TV system , all the receivers (Receiver) , which serves four essential reasons.
One . Decode (Descramble) encoded signals . In order to decode The receiver required for correct decoding chip package item. Service providers can contact the chip via the satellite. To make the necessary changes to the programs decode. Often, the provider may signal the destruction of illegal decoding
devices to prevent unauthorized use of this signal is Electronic Counter
Measure (ECM).
Two . Been out MPEG-2 digital signal and converts the signal into an analog TV receiver , they're going to be able to get . In the U.S. The receiver will convert the digital signal to an analog NTSC tuner and dish installation can sometimes get HDTV signal .
Three . Took the signal from each channel is sent to all TV viewers . When you change the channel on the receiver. Receiver , it sends a signal to the receiver the channel on your TV . Because
the signal is only 1 per channel and you can not record one while
watching another at the same, he would not be able to watch the 2
different items with 2 TV's connected to the machine. the same machine In order to do these things, which is typical of Cable TV . You need to purchase an additional receiver.
Four . Kept track of items that have to pay to get and send data to a
computer at the office, the service provider to contact the payment
information .
The receiver also has other features as well. It receives signals from the provider list table and present this information to the screen program guide . Many
receivers have parental lock-out options, and has been a part of
digital video recorder (Digital Video Recorders-DVRs) installed inside .
Which allows you to pause live television and record programs on a hard drive.
While
satellite broadcasting of digital still lack the basic characteristics
of Cable TV in general ( such as the ability to split the signal between
each satellite and digital video recorders (VCRs)) , but with high
-quality images . Items with variety and service area expansion to make television stars fro a good choice for some people. With the rise of digital cable TV , which can improve the quality of the video and had extended channel use. TV wars are heating up Anything can happen in the next 10 years, as well as those who provide these televisions pounding action .
Thursday, February 6, 2014
Satellite (The Dish)
A satellite dish is just a special kind of antenna designed to focus on a specific broadcast . Standard
dish consists of a curved surface (parabola) looks like a bowl and feed
horn (Feed horn) in the middle to send the signal. Control signal through the horn . And the plate was mixed signal beam is relatively narrow.
Parabolic dish reflects energy from the feed horn . Caused a small beam .
Plate at the end of the receiver can not send data to it. It can only receive data Plates for the receiver works in a completely opposite plate of the transmitter. When a beam hits the curved section of the plate. Curved surface , it reflects the radio signal inward at one point only. A concave mirror to focus on one point in particular.
Parabolic dish as radio came to a point on the feed horn .
In this case, the point is that the dish's feed horn , which passes the signal to the receiver device ideally no obstructions that hinder the satellite to the receiver . So fast it will get a clear signal .
In some systems, the dish needs to pick up signals from two or more satellites at the same time . Satellite may be in a position adjacent to the receiver general until the first feed horn , which can receive signals from satellites, two satellites have this partial attenuation of the signal quality . Because the receiver is not intended to make the received signals from multiple satellites . The design philosophy is to use the new horn two or more to receive signals from the satellites . While several ships signaled the arc of the plate. Will reflect the different angles . So that no one will interfere with the signal horn each .
Components in the middle of the feed horn is Low Noise Blockdown Converter or LNB LNB to amplify radio signals reflected from the dish and filters out the noise to LNB transmission filter and then expanded to machine. satellite receiver inside the viewer's house .
Parabolic dish reflects energy from the feed horn . Caused a small beam .
Plate at the end of the receiver can not send data to it. It can only receive data Plates for the receiver works in a completely opposite plate of the transmitter. When a beam hits the curved section of the plate. Curved surface , it reflects the radio signal inward at one point only. A concave mirror to focus on one point in particular.
Parabolic dish as radio came to a point on the feed horn .
In this case, the point is that the dish's feed horn , which passes the signal to the receiver device ideally no obstructions that hinder the satellite to the receiver . So fast it will get a clear signal .
In some systems, the dish needs to pick up signals from two or more satellites at the same time . Satellite may be in a position adjacent to the receiver general until the first feed horn , which can receive signals from satellites, two satellites have this partial attenuation of the signal quality . Because the receiver is not intended to make the received signals from multiple satellites . The design philosophy is to use the new horn two or more to receive signals from the satellites . While several ships signaled the arc of the plate. Will reflect the different angles . So that no one will interfere with the signal horn each .
Components in the middle of the feed horn is Low Noise Blockdown Converter or LNB LNB to amplify radio signals reflected from the dish and filters out the noise to LNB transmission filter and then expanded to machine. satellite receiver inside the viewer's house .
Wednesday, February 5, 2014
Compression encoding signaling (Compression, Encryption, Transmission)
The two main services companies in America using an MPEG-2 video compression , which is the one used to store movies on DVDs. With
MPEG-2 compression , the provider can reduce the data size down to 5
270 Mbps or 10 Mbps ( depending on the format of the show ) is an
important step that has made DBS service a success. With compressed digital data. Prototype satellite can transmit about 200 channels if uncompressed digital data. Satellite can transmit about 30 channels only.
Broadcast Control Center Digital image data through access to high quality MPEG-2 encoder which converts items into an MPEG-2 video size and format of the information is correct for satellite receivers in your home .
The encoder analyzes each frame and agreed to encode it . Encoders to eliminate irrelevant information out. And to find the variable information from other frames to reduce the file size down . Each frame can be encoded using one of three methods: this method.
Encryption is an internal frame (Intraframe) contains a complete image for that frame . This encryption makes data compression is minimal.
Frame encoding a prophet (Predicted Frame) contain sufficient information to tell the satellite receiver how to display the following frame by frame or frames the basic data of forecasting , most of which were previously shown . This means that the frame illustrated with specific information on how the image changed from the previous frame .
Frame encoding a bidirectional (Bidirectional Fram) in the frame in two directions. Receiver must have the frame and the prediction frame encompassed . Using data from the closest surrounding frames . I will insert the receiver position and color for each pixel.This process can sometimes cause Arti fax (Artifacts) is a defect with some of the images shown on television. But for most of the images are clear and bright.
Size of data compression depends on the nature of the item. If the encoder is converting broadcast news. It can take a lot longer frames because most of the same scene from one frame to the next frame . In the other categories , such as movie length . And Music Video Things change very quickly from one frame to the next frame . Therefore the encoder must generate more internal frame . The result is that some items, such as news broadcasts typically compressed to a smaller size than the full length of the movie .
After the image is compressed Service providers need to be encrypted to prevent people from accessing information without paying. Encoding will distort (Scramble) digital data to make it unreadable . That way they only have to decrypt the data only . ( Converted back into usable data ) if the receiver has decoded the correct sequence and combination lock.
When the signal is compressed and encrypted. Broadcast center sends a signal to the satellites one. Satellite receiver is using a satellite dish on . Amplifiers and use another plate to signal back to Earth , where viewers can not receive.
Broadcast Control Center Digital image data through access to high quality MPEG-2 encoder which converts items into an MPEG-2 video size and format of the information is correct for satellite receivers in your home .
The encoder analyzes each frame and agreed to encode it . Encoders to eliminate irrelevant information out. And to find the variable information from other frames to reduce the file size down . Each frame can be encoded using one of three methods: this method.
Frame encoding a prophet (Predicted Frame) contain sufficient information to tell the satellite receiver how to display the following frame by frame or frames the basic data of forecasting , most of which were previously shown . This means that the frame illustrated with specific information on how the image changed from the previous frame .
Frame encoding a bidirectional (Bidirectional Fram) in the frame in two directions. Receiver must have the frame and the prediction frame encompassed . Using data from the closest surrounding frames . I will insert the receiver position and color for each pixel.This process can sometimes cause Arti fax (Artifacts) is a defect with some of the images shown on television. But for most of the images are clear and bright.
Size of data compression depends on the nature of the item. If the encoder is converting broadcast news. It can take a lot longer frames because most of the same scene from one frame to the next frame . In the other categories , such as movie length . And Music Video Things change very quickly from one frame to the next frame . Therefore the encoder must generate more internal frame . The result is that some items, such as news broadcasts typically compressed to a smaller size than the full length of the movie .
After the image is compressed Service providers need to be encrypted to prevent people from accessing information without paying. Encoding will distort (Scramble) digital data to make it unreadable . That way they only have to decrypt the data only . ( Converted back into usable data ) if the receiver has decoded the correct sequence and combination lock.
When the signal is compressed and encrypted. Broadcast center sends a signal to the satellites one. Satellite receiver is using a satellite dish on . Amplifiers and use another plate to signal back to Earth , where viewers can not receive.
Overall system (The Overall System)
Early satellite TV viewers were explorers too. They use satellites are expensive to find special items that are not intended for a large audience . Satellite dish and get audiences used as a signal station in the country. Operation of the space agency NASA and the specialized agencies on the other transmitters , many live satellites to beam live between those who own the satellite , some still searching for an item of this broadcast. through its satellite But today, watching TV stars fro most viewed television via a satellite broadcast (Direct Broadcast Satellite-DBS) as DirectTV or The Dish Network provider DBS select various items and broadcast them to . members in the package . Essentially, the goal of the service is to bring the various channels are dozens or even hundreds of channels to your television in almost any format to the cable TV competition .
The broadcast of the service is completely digital , unlike in the past. This means that these items have a better picture and sound quality dramatically. Satellite early broadcast radio the C-band , a radio frequency 3.4 GHz Hz to 7 GHz Hz (GHz) satellite broadcasting digital signals in the frequency Ku - the Ku. -band (12 GHz to 14 GHz) with the major components included in the system with 5 satellite DTH (Direct to home) , including production items , a diffusion signal , satellite dish and receiver.
Source production Typically the various channels The program for broadcast . The provider does not produce itself. But paying other companies (such as HBO or ESPN) for the rights to broadcast via satellite and in this case it looks more like a broker between you and the source list. ( Cable TV companies are operating with the same principles ) .
Centers for Broadcasting Is the center of the system. Centre for Broadcasting Television providers receive signals from the source list and then broadcasting a signal to a satellite in orbit. geostationary orbit.
Satellite receives signals from the broadcast station . Then re -sending them back to the ground.
Satellite viewers receive signals from a satellite . (Or multiple satellites in the same area of the sky) signal through to the receiver in the viewer's house .
Performed on receiver signal and send the signal through to the TV receiver use in general . TV Show (The Programming) Satellite TV providers have been various items from the second source is broadcast on national television. - Stations that receive signals from satellites then send the signal broadcasting to new satellites (such as HBO, ESPN and CNN) , and local television stations such (NBC, ABC, PBS and Fox , a TV station that agrees with . obligation to the station's broadcasting network. In specific areas ) , most broadcast stations have also submitted an entry for Cable TV. And local television stations were broadcasting their own broadcasts .
TV broadcast stations always have zero for classified items for delivery to geostationary satellites . (Geostationary Satellite) broadcast center uses large satellite dishes to receive signals from multiple analog and digital stations.
Most local stations do not transmit a signal to a satellite list . Consequently , service providers must find other ways to get the signal from these stations. If a service includes a list of local television stations in specific areas. It has to be something a bit more room inside the station , which includes tools to communicate the 2-3 receiver in this tool directly from the broadcaster through fiber optic cables . Or from the antenna to get the signal to the control center broadcasting.
Broadcast control center converts all of this information into a digital encode uncompressed , high-quality at this point is composed of large data encoded a 270 megabyte per second (Mbps) for each channel . In order to send a signal from this point . Broadcast control center to compress data. Otherwise, data will be larger than the satellite can bear.
The broadcast of the service is completely digital , unlike in the past. This means that these items have a better picture and sound quality dramatically. Satellite early broadcast radio the C-band , a radio frequency 3.4 GHz Hz to 7 GHz Hz (GHz) satellite broadcasting digital signals in the frequency Ku - the Ku. -band (12 GHz to 14 GHz) with the major components included in the system with 5 satellite DTH (Direct to home) , including production items , a diffusion signal , satellite dish and receiver.
Source production Typically the various channels The program for broadcast . The provider does not produce itself. But paying other companies (such as HBO or ESPN) for the rights to broadcast via satellite and in this case it looks more like a broker between you and the source list. ( Cable TV companies are operating with the same principles ) .
Centers for Broadcasting Is the center of the system. Centre for Broadcasting Television providers receive signals from the source list and then broadcasting a signal to a satellite in orbit. geostationary orbit.
Satellite receives signals from the broadcast station . Then re -sending them back to the ground.
Satellite viewers receive signals from a satellite . (Or multiple satellites in the same area of the sky) signal through to the receiver in the viewer's house .
Performed on receiver signal and send the signal through to the TV receiver use in general . TV Show (The Programming) Satellite TV providers have been various items from the second source is broadcast on national television. - Stations that receive signals from satellites then send the signal broadcasting to new satellites (such as HBO, ESPN and CNN) , and local television stations such (NBC, ABC, PBS and Fox , a TV station that agrees with . obligation to the station's broadcasting network. In specific areas ) , most broadcast stations have also submitted an entry for Cable TV. And local television stations were broadcasting their own broadcasts .
TV broadcast stations always have zero for classified items for delivery to geostationary satellites . (Geostationary Satellite) broadcast center uses large satellite dishes to receive signals from multiple analog and digital stations.
Most local stations do not transmit a signal to a satellite list . Consequently , service providers must find other ways to get the signal from these stations. If a service includes a list of local television stations in specific areas. It has to be something a bit more room inside the station , which includes tools to communicate the 2-3 receiver in this tool directly from the broadcaster through fiber optic cables . Or from the antenna to get the signal to the control center broadcasting.
Broadcast control center converts all of this information into a digital encode uncompressed , high-quality at this point is composed of large data encoded a 270 megabyte per second (Mbps) for each channel . In order to send a signal from this point . Broadcast control center to compress data. Otherwise, data will be larger than the satellite can bear.
Tuesday, February 4, 2014
What is Satellite (What is Satellite TV?).
In summary, similar to a television broadcast satellite television broadcast a lot. A wireless system for delivering television programming directly to the home audience . Both television broadcast and satellite stations will also send items through radio signals.
Broadcast stations use a powerful antenna to transmit radio waves to the surrounding area . Viewers can get a signal with an antenna that is smaller than most. Limitations of television broadcast is frequency. Radio signals used for television broadcast antenna is shot out of a straight line. To receive these signals , you must be in the same direction as the line of sight (Line of sight) of the transmitter antenna . Smaller obstacles such as. Houses a small tree or not an issue. But the big obstacle will reflect these radio waves .If our world is really flat . You can receive a signal from a television broadcast several thousand kilometers from the station . But because our planet is spherical . Eventually interrupt the lines of the signal. Another problem with the TV broadcast signal is often distorted , making viewing even in areas normally. To get a perfectly clear signal like you find on cable TV . You will be close enough to the transmitter antenna without too many obstacles in the direction of the antenna, the transmitter with you.
Satellite television solves both these respects by sending broadcast signals from satellites orbiting the Earth . Because the satellite is high in the sky. So there are a lot of people who are in line of sight. Satellite TV systems transmit and receive radio signals using specialized antennas called satellite (Satellite dishes).
High up in the sky than a satellite TV antenna . Therefore, it is broader than the line of sight .
Satellite TV is all but spent in orbit. Geosynchronous orbit , which means that these satellites are in place in the sky relative to the Earth . Each satellite was launched into space at a speed of about 7,000 mph ( 11,000 kilometers per hour) to an altitude of about 22,200 miles ( 35,700 kilometers) above Earth at the speed and height of this size. Satellite rotates around the earth every 24 hours during the first round in the same time with the rotation of the first round or the fact that the satellite orbit with the Earth's rotation . So you just turn in the direction of the satellite dish only once. From then onwards it received satellite signals without additional customization . At least when everything is running as normal.
Broadcast stations use a powerful antenna to transmit radio waves to the surrounding area . Viewers can get a signal with an antenna that is smaller than most. Limitations of television broadcast is frequency. Radio signals used for television broadcast antenna is shot out of a straight line. To receive these signals , you must be in the same direction as the line of sight (Line of sight) of the transmitter antenna . Smaller obstacles such as. Houses a small tree or not an issue. But the big obstacle will reflect these radio waves .If our world is really flat . You can receive a signal from a television broadcast several thousand kilometers from the station . But because our planet is spherical . Eventually interrupt the lines of the signal. Another problem with the TV broadcast signal is often distorted , making viewing even in areas normally. To get a perfectly clear signal like you find on cable TV . You will be close enough to the transmitter antenna without too many obstacles in the direction of the antenna, the transmitter with you.
Satellite television solves both these respects by sending broadcast signals from satellites orbiting the Earth . Because the satellite is high in the sky. So there are a lot of people who are in line of sight. Satellite TV systems transmit and receive radio signals using specialized antennas called satellite (Satellite dishes).
High up in the sky than a satellite TV antenna . Therefore, it is broader than the line of sight .
Satellite TV is all but spent in orbit. Geosynchronous orbit , which means that these satellites are in place in the sky relative to the Earth . Each satellite was launched into space at a speed of about 7,000 mph ( 11,000 kilometers per hour) to an altitude of about 22,200 miles ( 35,700 kilometers) above Earth at the speed and height of this size. Satellite rotates around the earth every 24 hours during the first round in the same time with the rotation of the first round or the fact that the satellite orbit with the Earth's rotation . So you just turn in the direction of the satellite dish only once. From then onwards it received satellite signals without additional customization . At least when everything is running as normal.
Important features to look for while buying a LED TV, outdoor or waterproof television.
These days shopping for an out of doors crystal rectifier TV is a fashionable investment although most of the rates of such tv sets have significantly slashed down. With the launch of such a lot of on-line websites the competition amongst corporations and manufactures has accrued that has crystal rectifier to the autumn of costs significantly. If a client plans to take a position in an out of doors crystal rectifier TV or a water-proof televsion, here ar some options that he or she ought to search for within the product:
1. the tv ought to be one complete unit in order that there's no penetration of any reasonably water, moisture, frost or wetness. Al this stuff will hamper the functioning of the set.
2. It ought to meet all rules and pointers that ar ordered down for producing of such tv sets.
3. A detector ought to be ideally put in within the device so as to keep up temperature or for different functions in addition.
4. The remote provided ought to be water proof and made from sensible quality material in order that it does not get hampered.
It is usually aforesaid that a water-proof tv is usually higher to use with associate degree enclosure that's often provided by constant manufacturer or is currently simply accessible on websites concerned in production of such enclosures. associate degree enclosure protects and safeguards a television receiver type not solely physical injury however extreme atmospheric condition in addition. associate degree enclosure additionally enhances the viewing expertise of the family that has put in the device either within the interior or outside the house. thus if a client needs to observe their favorite channel or serial whereas enjoying the skin weather then it\'s currently potential. people that would like to fancy a hot and restful tub listening or observance their favorite music video it\'s additionally currently potential. Home amusement has for sure been redefined with the appearance of those subtle electronic devices.
Apart from getting used as a supply of amusement in households, an out of doors crystal rectifier TV is commonly used for advertising and merchandise promotion. Advertisers currently ar concerned in exploitation the foremost modern suggests that of communication so as to push a particular complete or product amongst customers. In such a case, out of doors crystal rectifier TV is among the foremost most well-liked modes of advertising because it is attribute to induce interested in fascinating visuals type wherever potential client gather important info concerning product and services that ar being promoted.
These days the retail market is overflowing with product and services that ar of comparable nature thus, the competition has additionally become harder in addition. once a product is launched within the trade is there to push the sales of a corporation and additionally become a favorite or a most well-liked selection of shoppers. Advertising and complete promotion ar 2 ways utilized by corporations to push their product or service within the market. Digital aggregation these days chiefly contains of installation an out of doors crystal rectifier TV or a water-proof tv in market areas or looking malls wherever they're ahead of the eyes of shoppers and show important info. however before investment in an out of doors crystal rectifier TV a corporation invest time and cash in survey in order that the come back on investment is substantial enough for any advertisements and complete promotion.
1. the tv ought to be one complete unit in order that there's no penetration of any reasonably water, moisture, frost or wetness. Al this stuff will hamper the functioning of the set.
2. It ought to meet all rules and pointers that ar ordered down for producing of such tv sets.
3. A detector ought to be ideally put in within the device so as to keep up temperature or for different functions in addition.
4. The remote provided ought to be water proof and made from sensible quality material in order that it does not get hampered.
It is usually aforesaid that a water-proof tv is usually higher to use with associate degree enclosure that's often provided by constant manufacturer or is currently simply accessible on websites concerned in production of such enclosures. associate degree enclosure protects and safeguards a television receiver type not solely physical injury however extreme atmospheric condition in addition. associate degree enclosure additionally enhances the viewing expertise of the family that has put in the device either within the interior or outside the house. thus if a client needs to observe their favorite channel or serial whereas enjoying the skin weather then it\'s currently potential. people that would like to fancy a hot and restful tub listening or observance their favorite music video it\'s additionally currently potential. Home amusement has for sure been redefined with the appearance of those subtle electronic devices.
Apart from getting used as a supply of amusement in households, an out of doors crystal rectifier TV is commonly used for advertising and merchandise promotion. Advertisers currently ar concerned in exploitation the foremost modern suggests that of communication so as to push a particular complete or product amongst customers. In such a case, out of doors crystal rectifier TV is among the foremost most well-liked modes of advertising because it is attribute to induce interested in fascinating visuals type wherever potential client gather important info concerning product and services that ar being promoted.
These days the retail market is overflowing with product and services that ar of comparable nature thus, the competition has additionally become harder in addition. once a product is launched within the trade is there to push the sales of a corporation and additionally become a favorite or a most well-liked selection of shoppers. Advertising and complete promotion ar 2 ways utilized by corporations to push their product or service within the market. Digital aggregation these days chiefly contains of installation an out of doors crystal rectifier TV or a water-proof tv in market areas or looking malls wherever they're ahead of the eyes of shoppers and show important info. however before investment in an out of doors crystal rectifier TV a corporation invest time and cash in survey in order that the come back on investment is substantial enough for any advertisements and complete promotion.
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