It could be many things. 1  Gather facts. 2  Rule out equipment... 3  Back to gathering facts... 4  Call Comcast.  Good 1  luck. Have your problems always existed (with your current installation/configuration)?  When speaking with anyone...
A maximum-phase system is the opposite of a minimum phase system. A causal and stable LTI system is a maximum-phase system if its inverse is causal and unstable. That is, 1  The zeros of the discrete-time system are outside the unit circle.
The Concept of Phase. A phase is a distinct and homogeneous state of a system with no visible boundary separating it into parts. Conversion between these states is called a phase transition. Water, H2O, is the most common substance that its gas (steam), liquid (water), and solid (ice) phases are widely known. An ice water mixture has two phases, so are systems containing ice-and-vapour, and water-and-vapour.