What should cable modem snr be

It allows several users to share the same network or channel by dividing the signal into different time slots. Users transmit in rapid succession during their own time slot. This allows multiple stations to share the same transmission medium while using only a part of its channel capacity. Synchronous Code Division Multiple Access.

Allows several transmitters to send information simultaneously over a single communication network or channel. This allows several users to share a band of frequencies, aka bandwidth. Both employ spread spectrum technology and a special coding schemes to permit multiple users on the network or channel.

Cable Modem Termination System. Downstream Power refers to the line signal sent from the cable provider to cable modem. Downstream SNR refers to the signal being sent in relation to the noise on the line. What are optimum signal levels for my modem? A technician should still fix this to get to recommended levels. It is strongly recommended for you to force ISP tech to fix it since your power levels are close to edge.

QPSK: 12 dB minimum. Effie White has been writing Internet- and technology-based self-help articles professionally since She also writes user guides for software and web-based applications. She is studying at Kennesaw State University, working towards a bachelor's degree in psychology.

Home Hardware. Outside Wiring Step 1. Inside Wiring Step 1 Remove excess cable running to the modem. Outside coaxial cable is typically a heavier grade than inside cable, so make sure to use the proper grade cable when making replacements. If you do not have the proper equipment to cut or replace cable, contact your local cable provider. Many services are free or have a small fee. Do not touch cables inside or outside your home if you are not absolutely sure what they are. Coaxial cable carries a small current.

Do not touch exposed copper wires without the proper safety gear. I personally prefer to not have less than -7db. If you want to raise your signal level a bit, check my troubleshooting and splitter section.

Downstream SNR : This number is best over 30, but you may not have any problems with down to Anything less and you will probably have slow transfers, dropped connections, etc. See my "Downstream SNR" definition for more information on this. Upstream Power : The lower this number is, the better.

If it is above 55, you may want to see if you can reconfigure your splitters. Anything above 57 is not good and should be fixed ASAP. This is getting pretty close to not being able to connect. Upstream SNR : Anything above 29 is considered good. The higher this number is, the better. If this number is below 25 and 29, you have a minute amount of noise leaking in somewhere. If it's anything less than 25, you want to get it fixed as you may have a lot of packet loss or slow transfer rates.