Quote:
Originally Posted by SnoopZ
My upstream channels are 44 and 46 and always show as Qam 16 what does that mean for me?
|
you don't need to worry about the channel ID's, they are just numbers so you can keep track of which channels you are using instead of looking at the frequencies. It is like you using locker number 52 at work instead of 27, it makes no difference. The two things you need to look at are the upstream power (yours is 36) and the modulation (qam16). The modulation is an indication of the level of throughout achievable on your line. Years ago you would frequently see it drop to qpsk but you don't see that anymore. QAM64 is the new standard/target because it offers 50% increased throughput vs QAM16 which means you are less likely to suffer congestion on your upstream speed. As an example, if each upstream channel could upload at 20mbits on QAM16, on QAM64 it can do 30mbits so two bonded channels now offer 60mbits instead of 40. The actual numbers are a bit higher than that but VM are going down that route atm before they start making more channels available and increasing the sizes of the bonding group. Igni has said in another thread very recently that they just aren't interested at all atm.