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DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Whats a good BER reading
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<blockquote data-quote="Huevos" data-source="post: 776293" data-attributes="member: 301161"><p>Well it is pretty simple really. You want as few errors as possible before you try to correct them. </p><p></p><p>First here are what the numbers mean. At the start there is a number between 1 and 9, (2 in your example above) followed by "E-" and then another number (4 in your example). The first number is the number of errors and the second number is the size of the sample. So:</p><p></p><ul> <li data-xf-list-type="ul">E-2 = 100</li> <li data-xf-list-type="ul">E-3 = 1000</li> <li data-xf-list-type="ul">E-4 = 10000</li> <li data-xf-list-type="ul">E-5 = 100000</li> <li data-xf-list-type="ul">E-6 = 1000000</li> <li data-xf-list-type="ul">E-7 = 10000000</li> <li data-xf-list-type="ul">E-8 = 100000000</li> </ul><p></p><p>so in your example "2E-4", the "E-4" part means we are looking at a string of data containing 10000 bits, and the "2" part means there are 2 errors. That means there is 1 error in every 5000 bits sent. An error of that amount is correctable. Look at another example though, "9E-2", that is 9 errors in a data string of 100 bits, or 1 error in 11 bits sent. Such a high error rate is impossible to correct.</p><p></p><p>Anyway enough of that because it is not very user friendly. If your meter has MER that is the best indicator of the health of the received signal, and you want the highest number possible. Satelliteman's figures are pretty conservative (i.e. give a good weather margin) and you can get away with much worse, for example 8dB will give an error free picture on an FEC 5/6 source, but the first drip of rain and you will lose the picture.</p></blockquote><p></p>
[QUOTE="Huevos, post: 776293, member: 301161"] Well it is pretty simple really. You want as few errors as possible before you try to correct them. First here are what the numbers mean. At the start there is a number between 1 and 9, (2 in your example above) followed by "E-" and then another number (4 in your example). The first number is the number of errors and the second number is the size of the sample. So: [LIST] [*]E-2 = 100 [*]E-3 = 1000 [*]E-4 = 10000 [*]E-5 = 100000 [*]E-6 = 1000000 [*]E-7 = 10000000 [*]E-8 = 100000000 [/LIST] so in your example "2E-4", the "E-4" part means we are looking at a string of data containing 10000 bits, and the "2" part means there are 2 errors. That means there is 1 error in every 5000 bits sent. An error of that amount is correctable. Look at another example though, "9E-2", that is 9 errors in a data string of 100 bits, or 1 error in 11 bits sent. Such a high error rate is impossible to correct. Anyway enough of that because it is not very user friendly. If your meter has MER that is the best indicator of the health of the received signal, and you want the highest number possible. Satelliteman's figures are pretty conservative (i.e. give a good weather margin) and you can get away with much worse, for example 8dB will give an error free picture on an FEC 5/6 source, but the first drip of rain and you will lose the picture. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Satellite Meters and Installation Equipment
Whats a good BER reading
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