The invention provides large surface area geogrids with a high tensile strength, a method and apparatus for producing them, and their use as drain and reinforcement grids and as fences. The investment company issues one or more classes of shares that are bought from and redeemed with the investment company at a net asset value. The digital data of the message is combined with a scrambling vector before the data is modulated. A queue management thread polls the flow indicator to determine when the software queue should be accessed for ensuring that data packets do not remain in the software queue for extended time periods between data bursts.