Described is an apparatus for making pods containing respective doses of an infusion product. In some embodiments, the shield is a pliable curtain that a tensioner holds taut during some operations of the dock leveler, yet the curtain can collapse for below-dock operation. For example, the combine speed, the fan speed, and the like can be measured. Where fine tuning is required, a tuning screw and resistor disposed adjacent to the transmission line segment are provided. The monohalobiuret metal salt is inexpensive and easy to synthesize and thus a great yield of HDCA can be obtained from the monohalobiuret metal salt at low cost. Each data word has an extension bit which indicates a presence of additional words therein.