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Fringe Reception General
abu dhabi sport - UK
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<blockquote data-quote="Huevos" data-source="post: 698439" data-attributes="member: 301161"><p>Shannon's Information Therorum shows that as you increase the data rate you need you need more signal to overcome noise. Going up in symbol rate means higher data rate hence you would need more signal to maintain data integrity. Also you need to look at error correction. Currently that transponder is at 5/6 FEC. What was the FEC when the symbol rate was 6000? Maybe 2/3. Here, where I am, we get identical signal levels off EB1 and Astra 2D but EB1 only needs an 80cm dish and Astra 2D at least a 1.5m just because the FEC is different.</p><p></p><p>Re 26ºE 11766H: it is currently transmitting (27500 FEC 5/6) carrying 5 channels flagged as encrypted and labelled as "Service 1 thru 5 HD", receivable here on a 1.5m dish at MER 11.1dB.</p></blockquote><p></p>
[QUOTE="Huevos, post: 698439, member: 301161"] Shannon's Information Therorum shows that as you increase the data rate you need you need more signal to overcome noise. Going up in symbol rate means higher data rate hence you would need more signal to maintain data integrity. Also you need to look at error correction. Currently that transponder is at 5/6 FEC. What was the FEC when the symbol rate was 6000? Maybe 2/3. Here, where I am, we get identical signal levels off EB1 and Astra 2D but EB1 only needs an 80cm dish and Astra 2D at least a 1.5m just because the FEC is different. Re 26ºE 11766H: it is currently transmitting (27500 FEC 5/6) carrying 5 channels flagged as encrypted and labelled as "Service 1 thru 5 HD", receivable here on a 1.5m dish at MER 11.1dB. [/QUOTE]
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Fringe Reception General
abu dhabi sport - UK
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