Good downstream power levels are within 7 to 7 dbmv.
Cable modem good power level.
The three signal levels that need to be within the acceptable level are downstream power snr signal to noise ratio and upstream power.
Cable signal levels for all docsis cable modems require to be within the acceptable level for the modem operate properly.
Downstream and upstream power levels are important when determining if the cable line that is connected to your cable modem or modem router is receiving sufficient power.
Typically the lower you go in the minus range the more the modem struggles to keep being acquired.
To view the upstream and downstream power levels.
Downstream power refers to the line signal sent from the cable provider to cable modem.
If your cable modem reports more than 52 upstream power you need to look at your cables and splitters.
Good upstream power levels are within 38 48 dbmv.
The cable modem s power levels should be within these ranges.
Although there are docsis 3 0 cable modems that technically support speeds of 1gbps or higher chances are that your cable internet provider will cap out at 600mbps over docsis 3 0.
Launch a web browser from a computer or mobile device that is.
This number should be lower than 55db.
It has 8 downstream and 4 upstream channels.
Upstream power shows the level of the signal from the cable modem to the provider.
The lower the number the better your connection.
2010 04 10 08 58 44 mprogers technically low transmit levels upstream power can cause.
Downstream power level rx this level is the downstream signal strength and can be plus or minus and shows the amount of signal received by the modem from the cable companies transmitter.
My modem is a fairly new cisco dpc3008.
All those numbers can aid in determining many potential problems with your cable modem connection.
I have an account with comcast and have recently been experiencing frequent slowdowns and disconnects.