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wodec · 20-02-2008, 14:05

Hi all,

i'm running docsis2.0 on my plant.
Downstream : BW 8MHz, modulation 256qam -->result = 35mBit/s (ok, i'm satisfied)
Upstream : BW 6.4Mhz, modulation 64qam --> result = 2.4MBit/s
BW 3.2Mhz, modulation 64qam --> result = 2.4MBit/s
BW 3.2MHz, modulation 16qam --> result = 2.4MBit/s
BW 3.2MHz, modulation qpsk --> result = 2.4MBit/s

So it looks like my upstream modulation is forced to qpsk???

my Upstream SNR = 30.3dB and CNR 26dB, so that should be suficient...

anyone any ideas?

Thanks W.

20-02-2008, 14:05	#1
wodec Inactive Join Date: Feb 2008 Posts: 2	Upstream forced to qpsk???? Hi all, i'm running docsis2.0 on my plant. Downstream : BW 8MHz, modulation 256qam -->result = 35mBit/s (ok, i'm satisfied) Upstream : BW 6.4Mhz, modulation 64qam --> result = 2.4MBit/s BW 3.2Mhz, modulation 64qam --> result = 2.4MBit/s BW 3.2MHz, modulation 16qam --> result = 2.4MBit/s BW 3.2MHz, modulation qpsk --> result = 2.4MBit/s So it looks like my upstream modulation is forced to qpsk??? my Upstream SNR = 30.3dB and CNR 26dB, so that should be suficient... anyone any ideas? Thanks W.