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nitric
join:2012-01-29

nitric

Member

[INTERNET] Only three channels on the return path?

I've noticed that my modems upstream light has been blinking for weeks. I powercycled it just now and it's still blinking. I'm getting 3 channels on the upstream, whereas before I was getting 4. My speed is fine, as seen here (45/4):

»www.speedtest.net/result ··· 2041.png

Is this normal? Has Rogers been doing work on the upstream channels?

Cable Signal Details
Forward Path:
Channel Frequency Power SNR BER Modulation
1 597.0 MHz -0.8 dBmV 38.0 dB 0.000 % 256 QAM
2 591.0 MHz -0.9 dBmV 37.7 dB 0.000 % 256 QAM
3 603.0 MHz -0.6 dBmV 37.5 dB 0.000 % 256 QAM
4 609.0 MHz -0.9 dBmV 37.4 dB 0.000 % 256 QAM
5 615.0 MHz -1.2 dBmV 37.1 dB 0.000 % 256 QAM
6 621.0 MHz -1.6 dBmV 37.6 dB 0.000 % 256 QAM
7 633.0 MHz -2.2 dBmV 36.8 dB 0.000 % 256 QAM
8 639.0 MHz -2.3 dBmV 36.6 dB 0.000 % 256 QAM
Return Path:
Channel ID Frequency Power Modulation
3 23.7 MHz 42.0 dBmV 16 QAM
1 38.6 MHz 43.5 dBmV 16 QAM
2 30.6 MHz 42.0 dBmV 16 QAM
0 0.0 MHz 1.0 dBmV QPSK
mrdylanblue
join:2013-02-27
Brampton, ON

mrdylanblue

Member

By my understanding, they were in the process of changing upstream channels to 3x64 QAM modulation as opposed to 4x 16QAM.

Not sure why you have 3x16 QAM though.
Chong6969
join:2008-02-20
Port Colborne, ON

3 edits

Chong6969 to nitric

Member

to nitric
I to only have 3 upstream channels but my modem only blinks for a few secs may be a bug in the firmware or something

Status Code: Operational
Software Version: STAC.02.50
Software Model: a81a
Bootloader: 2.3.1

Cable Signal Details
Forward Path:
Channel Frequency Power SNR BER Modulation
1 525.0 MHz 3.6 dBmV 40.3 dB 0.000 % 256 QAM
2 507.0 MHz 2.6 dBmV 40.3 dB 0.000 % 256 QAM
3 513.0 MHz 3.3 dBmV 40.8 dB 0.000 % 256 QAM
4 519.0 MHz 3.3 dBmV 40.8 dB 0.000 % 256 QAM
5 531.0 MHz 3.6 dBmV 40.8 dB 0.000 % 256 QAM
6 537.0 MHz 3.7 dBmV 40.8 dB 0.000 % 256 QAM
7 543.0 MHz 3.6 dBmV 40.4 dB 0.000 % 256 QAM
8 549.0 MHz 3.7 dBmV 40.4 dB 0.000 % 256 QAM
Return Path:
Channel ID Frequency Power Modulation
2 28.7 MHz 41.0 dBmV 64 QAM
1 32.0 MHz 41.0 dBmV 64 QAM
3 25.3 MHz 41.0 dBmV 64 QAM
0 0.0 MHz 0.0 dBmV QPSK

Data Service Details
Provisioned Address: Yes
Provisioned Time: Yes
Provisioned Configuration: Yes
Registered: Yes
BPI: Disabled

rogersmogers
@start.ca

rogersmogers

Anon

You don't need 4 upstream channels. Don't worry about it.

DrugTito
join:2013-01-17
canada

DrugTito to Chong6969

Member

to Chong6969
Most of rogers customer (i think) have 3 up channels now.

My line:

Cable Signal Details
Forward Path:
Channel Frequency Power SNR BER Modulation
1 663.0 MHz 0.6 dBmV 38.7 dB 0.000 % 256 QAM
2 615.0 MHz 1.5 dBmV 39.7 dB 0.000 % 256 QAM
3 621.0 MHz 1.4 dBmV 39.7 dB 0.000 % 256 QAM
4 633.0 MHz -3.1 dBmV 36.5 dB 0.000 % 256 QAM
5 639.0 MHz -3.2 dBmV 36.5 dB 0.000 % 256 QAM
6 645.0 MHz -1.3 dBmV 37.4 dB 0.000 % 256 QAM
7 651.0 MHz 0.2 dBmV 38.6 dB 0.000 % 256 QAM
8 657.0 MHz 0.8 dBmV 38.9 dB 0.000 % 256 QAM
Return Path:
Channel ID Frequency Power Modulation
7 23.7 MHz 41.5 dBmV 64 QAM
5 31.3 MHz 43.0 dBmV 64 QAM
6 38.6 MHz 44.0 dBmV 64 QAM
0 0.0 MHz 0.0 dBmV QPSK
Khuji
join:2013-04-12
North York, ON

Khuji

Member

I'm kinda glad I wasn't the only one who only has 3x16 QAM for my return paths. Hopefully, we get increased to 3x64QAM.