[ccarmock]

As an update to this I have noticed some changes in the past week. Fed from New Malden for the past 4 years upstream modulation has always been QPSK on either Channel 1, 2 or 4. Last week there was an outage of around 30 mins a couple of times. Since then there seems to be a new upstream avaiable - Channel 3 on 37500000 Hz which is using 16QAM and also I notice Channel 1 at 18800000 Hz is also at 16QAM.

When my EPC2100 modem reboots if I am quick to look at the web pages during the boot procedure I see initially the upstream would be 5120000 bit/sec until ranging was complete when it would be set to 769000 (I am on the business 10 Mb/s service - due to upgrade to 50 Mb/s business Weds next week). Now when the modem reboots I see the initial rate is 10240000 - ie double the previous rate.

Does this indicate that some of the work to provide the enhanced upstream services has taken place in this area now?

Downstream Status Operational
Channel ID 7
Downstream Frequency 339000000 Hz
Modulation 256QAM
Bit Rate 10241000 bits/sec
Power Level 2.6 dBmV
Signal to Noise Ratio 40.2 dB



Upstream Status Operational
Channel ID 3
Upstream Frequency 37500000 Hz
Modulation 16QAM
Symbol Rate 769000 bits/sec
Power Level 43.0