13-06-2007, 08:00
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#13
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Inactive
Join Date: Jun 2003
Location: OX5
Services: (xNTL) VMDG480mm
Posts: 83
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Re: qam differences
Quote:
Originally Posted by Incomplete
Power levels at launch were dropped by about 6dB to compensate for the increased loading of the 256QAM constellation. The TJs should have been able to cope with 256QAM but for some reason couldn't get MCNS lock.
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Thanks for that info
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