A coaxial cable connector includes an internally corrugated member, an internally corrugated sealing member, and a back nut. A first bearing bore is defined in one of the opposing walls and adapted for receiving an input shaft. Use of the tunable delay improves efficiency of decoder buffering by maintaining a relatively constant level of decoder buffer fullness irrespective of signal bit rates. The axially extending shaft may be disposed within an axially extending passageway of a body assembly. A top end of the base board is bent sideward to form a fixing portion buckled in the corresponding fixing slot. , granulated activated carbon, mixtures.