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FORTEC STAR Lifetime Ultra Blind Search satellite receiver. Get the best cable descrambler box deals right here. Cable descramblers come with free trial period on all our products plus FTA satellite equipment boxes. A freetoair or FTA Receiver is a satellite television receiver designed to receive unencrypted broadcasts. Modern decoders are typically compliant with the MPEG2. How can this site help There are many cases where selfinstallation of a satellite dish or satellite system is better, easier and cheaper than calling a professional. Rod. Hewitt. Permission is granted for personal use of this document. This document may not be copied, mirrored or otherwise used. NTUwWDU1MA==/z/QskAAOSwX61ZA0~P/$_57/520-432.jpg' alt='Fta Satellite Receiver Program' title='Fta Satellite Receiver Program' />FTA Satellite TV Box. Is FTA Satellite TV Descrambler Boxs For Everyone Freetoair means exactly what it says, it is a way of receiving a signal whether for. Why is this here I made this information available as I see a large number of. MPEG 2 video services and more importantly because quite often. Although MPEG 2 is. What is not here. This page does not cover any topics relating to compromising. All the odd signals that people have received. Firewall Not Installed Properly here. North America using MPEG 2 receivers have been received because. I. believe in paying for programming, even if that means a grey market. That is quite different than stealing programming. What is MPEG MPEG stands for Moving Picture Experts Group. It is a standard. The first MPEG standard introduced was MPEG 1 which is used. Video. CDs. MPEG 1. VHS video. tape. The MPEG 1 data stream supports only one video signal and. MPEG 1 uses. either 2. Broadcasters wanted the enconomy of digital transmission, but. MPEG 1 was not suitable for satellite and MPEG 2 was still. MPEG which. I call MPEG 1. This format is not a official standard. CNN Airport network uses MPEG 1. MPEG 1. 5 uses a wide bandwidth MPEG 1 flavor of video encoding. MPEG 2 is becoming the de facto standard in the digital TV. MPEG 2 fixes many of the problem inherent in MPEG 1, such. It. allows for a much better picture studio quality and up to HDTV. It was officially adopted. ISO and has the catalog number ISO 1. Program producers like NBC, HBO et al prefer to use MPEG 2. Satellite. and cable companies also like the idea of digital compression. All licensed US DBS providers. Direc. TV, USSB, Echostar etc. What is DVB DVB stands for Digital Video Broadcast and is a standard based. MPEG 2 video and audio. DVB covers how MPEG 2 signals are. With the exception of the United States of America, Mexico. Canada, South Korea and Taiwan, DVB has been adopted by just about. TV radio. This document. DVB S, the satellite format of DVB DVB C is. DVBMPEG 2 over cable and DVB T is DVBMPEG 2. What is Digicipher Please see our new section on DCIIWhat is ATSC ATSC is Advanced Television Systems Committee which is destined. NTSC as the method of terrestrial television transmissions. United States, Canada, Mexico, South Korea and Taiwan. Like DCII, ACTS uses the MPEG 2 video specification, but bastardizes. North American and South KoreaTaiwan. ATSC is almost exactly the same as Digcipher 2 and of course. General Instrument was on the comitee that. ATSC to the FCC. In theory, ATSC and Digicipher 2. MPEG 2DVB, especially in the. An interesting tidbit about why ATSC uses AC3 for audio and. Musicam recently surfaced. In the field trials during the. ATSC specification, both AC3 and Musicam were. Technically both have the same merits, including the ability. However, AC3 was chosen. Musicam. It was later discovered that the testing procedure. AC3 and Musicam performed equally as well. Like DVBMPEG 2, ATSC supports HDTV. Will there ever be a receiver than. ATSC, DCII and MPEG 2DVBYes Motorolas DSR 4. DVB and DCII formats, however, its worth pointing out that this. Obviously, because of the differences in audio encoding, the. AC3 and MPEG 1, as the second generation. MPEG 2DVB silicon is now coming onto the market has the capability. Additionally, because DCII and ATSC are so similar, the DCII. General Instrument. In a complete. turn about, GI now licenses the DCII specification and has recently. Scientific Atlanta, one. MPEG 2DVB standard. Symbol Rates, FEC and that kinda stuff. Whats a symbol Like just about any form of digital transmission, the receiver. In the computer world, we call this the bit rate. For example. PCs can transmit from their serial ports at up to 1. Bit rate and baud rate are not the same, despite the. The bit rate specifies how many bits per second are carried. For example, suppose you invented a simple modem that transmitted. One tone could signal a 1 needed. Now imagine that you. By using. four tones instead of two, you could signal two sets of bits at. The baud rate is still 5. The combination. of the sets of tones is called a symbol because too. Whats QPSK modulation When satellite transponders are used to transmit MPEG 2 signals. Quadrature Phase Shift Keying is used to modulate the digital. RF carrier. Rather than using the amplitude or frequency of the carrier. QPSK modulates the phase of the carrier. Depending on the data being modulated, the carrier is. The great advantage of this method is that each symbol contains. AM or FM techniques. The diagrams below illustrate a typical implementation of QPSK   Fig. Fig. 2. Figure 1 shows each possible pair of data bits is represented. QPSK waveform. Because of QPSK, data rates are quoted in Symbol Rate rather. In the case of QPSK modulation, the bit rate is. For example an SR of 2. MSs 2. 0. mega symbols means 4. Mbs 4. 0 mega bits bits per second. Whats FEC Satellite transponders are rather noisy communications channels. Because satellite transmissions are broadcast. I. didnt get that last piece of information, please re transmit. As a result, Forward Error Correction is used, where. FEC when used with QPSK modulation uses two forms of error. The first, called convolutional coding with the Viterbi. The. fraction defines the amount of the symbol rate thats used for. After the convolutional error correction code has been removed. Reed Solomon code. This correction results in. Additionally. the FEC scheme also uses interleaving of the data stream to prevent. CDs use it to prevent scratches from causing drop outs. Consider the following message This is a sample message. If interleaved, it might look like e. Ts haais mgi smeaesp l. Should an error occur and say wipe out the mgi part of the. This s a sale messsa. Full Range Single Driver Loudspeakers more. As a result, only single characters are missing from the message. As a final step, the QPSK symbols are scrambled to ensure that. Since the QPSK demodulator obtains its. Note this form of scrambling. Why use different SRFEC values When people purchase time on a satellite, in effect they are. Therefore if a programmer. However, the bandwidth of a transponder is finite and therefore. SR typically between 2. MSs. By reducing the amount of FEC information sent along with. However. this then means that errors are harder to correct and that the. Whats QAM and Vestigal Sideband Quadrature Amplitude Modulation is the cable version of QPSK. Using many different symbol phases the initial standard for the. US is 6. 4 different phases, a given 6. MHz of cable bandwidth will. MHz transponder. Given a 1. RF channel. Vestigal Sideband modulation otherwise known as VSB 8 is. US for terrestrial ATSC. VSB 8 uses AM transmission with phase information. The other sideband is almost totally surpressed. VSB 8 uses eight phases with 3 bits encoded per phase. I could try. to explain how it works, but Harris Semiconductor has written. How do I make sense of the SRFECPID. Lyngsat Chart If youve seen something like 1. V SR 2. 30. 00 FEC 23. V 0. FF0 A 0. 10. ATNV 0. FF1 A 0. 10. RTNV 0. FF3 A 0. 10. Health. South. V 0. FF4 A 0. 10. 4 REMAX TVThis means that the transmission is centered at 1. GHz. uses Vertical polarity for the down link, uses a symbol rate of. MSs and FEC of 23. This is a multi channel package that.