In digital communications (QAM signals), how to convert from EVM (%) to MER (dB) ?
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EVMv = 1 /(MERv V)\n\nWhere V is the peak to mean voltage ratio and EVMv and MERv are expressed as voltage ratios.  \n\nSee annex C.2 starting on page 70 of the reference in "Source(s)" for the derivation.
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You'll find the correct answer in www.onlineconversion.com.  Save it in your Favorites :)
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You can get required CODECs at the link below
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You can use Xilisoft to conver RM File format to 3gp.\n\nIt has abelity to convert any media format to 3gp\n\nyou can download trial verson of the application from the below site
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lets say we have text1 as the meter textbox and text2 as the centimeter textbox as the simplest conversion example:\nsub text1 change\ntext2.text = str(val(text1) * 100)\nend sub\nso when you type a value in the meter box, it will multiply it by 100 and show the result in the centimeter box.
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We want to figure out what BER is, just knowing the chance that a symbol (two bits in a row) gets an error.\n\nThe chance that a single bit stays the same is 1-BER.\nAssuming errors are independent, then the chance that two bits in a row are unchanged is (1-BER)^2.  So, set this equal to 0.8 (the chance that an entire symbol is unchanged), and solve for BER.\n\n(I answer this w/o knowing, off-hand, what Amplitude Shift Keying is; this answer just relies on the fact that bit errors will be independent.)
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Here's how an LTRT works:\n\nThe Lt/Rt downmix sums the surround channels, attenuates them 3 dB (i.e. multiply by 0.707) and adds them out-of-phase to the left channel and in-phase to the right channel\n\n The formula for Lt/Rt:\n\nLt = L + (0.707*C) - (0.707*Ls) - (0.707*Rs)\nRt = R + (0.707*C) + (0.707*Ls) + (0.707*Rs)
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An E1 signal is 2.048Mbps.  An STM-1 (Synchronous Transmission Module level 1) is an SDH (Synchronous Digital Hierarchy) signal which is 155.52 Mbps which is equivalent to an OC-3 (Optical Carrier level 3) signal, and has about the same bandwidth as 75 E1 signals or 100 T1 signals.
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3GP Converter.http://www.nurs.or.jp/~calcium/3gpp/. very good converter. English version is also available.
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This one;\n\n http://switch3.castup.net/cunet/gm.asp?ai=214&ar=1050wmv&ak=null
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http://media-convert.com/\n\nwill do it on line for free.
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http://www.imagemagick.org\ntells how to convert between almost any format\nand any other.
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Search http://www.download.com for converteors\n\nXLMan
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u should convert format of your file to "3gp" with a convertor software.
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I suggest http://www.oanda.com/convert/classic\nI've tried this many times, very easy and very helpful too.
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4.0 mmols to around 7.0 mmols
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you can use MMConvert,its free, just remember to download realmedia codec, when you download the program.\n\nhttp://mmconvert.sourceforge.net/en_us/download.php