US Cable Support > Comcast HSI > [Signals] Signal check

reply to kerfuffle

Re: [Signals] Signal check

I was originally using a Motorola SB5100, which was subsequently swapped out to a SB5120 by the line tech that was dispatched. He ran some readings on my line, and he confirmed exactly what you said about the upstream value being out of wack. The signal from the pole was borderline, but it was no where near as bad as the reading from the modem. He assured me that he will escalate the issue to the guys with the "bucket trucks" to take a look into it at the headend/cmts.

I did not receive an update or confirmation from them whether or not that had actually taken place. However, I did notice the signals change slightly from what it was when the issue(s) started. So I assume work was done at the headend.

Initial readings
Downstream Value
Frequency 693000000 Hz Locked
Signal to Noise Ratio 37 dB
Power Level -9 dBmV
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading

Upstream Value
Channel ID 3
Frequency 30100000 Hz Ranged
Power Level 37 dBmV

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Current readings after multiple tech rolls
Downstream Value
Frequency 693000000 Hz
Signal to Noise Ratio 35 dB
QAM QAM256
Network Access Control Object ON
Power Level -3 dBmV
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
Upstream Value
Channel ID 1
Frequency 30100000 Hz
Ranging Service ID 649
Symbol Rate 5.120 Msym/s
Power Level 35 dBmV

I am from Massachusetts, which as far as I know we are DOCSIS 3.0 ready.

Since the modem is pre-used, I am open to the idea of purchasing a new DOCSIS 3.0 compliant modem.