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Old 22-05-2016, 18:44   #46
General Maximus
Ran Away
 
Join Date: Nov 2008
Location: Lincoln
Services: phone + 1gbit BB + SkyQ
Posts: 11,021
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Re: Virgin Media UK Confirms Trial of Faster Broadband Upload Speeds

Quote:
Originally Posted by JordanTheToaster View Post
Oh huh neat didn't know that.
yeah, it costs a small fortune to keep adding channels so VM are trying to offset that by squeezing as much juice out of each one as possible. It isn't as straight forward as that though as other upgrades need to be done to facilitate the increase in modulation. The higher the modulation the less noise tolerant it is and that is why you'll see some channels drop back down to qam32 or qam16. When your connection was playing up a few years ago you could tell when there was a problem with the upstream because it would drop right down to qpsk (very slow connection but prevents you from dropping your wan connection completely).
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