Equipments and methods for a mediator server controlling communication between clients and service provider. A clock generating circuit may be configured to provide a sampling clock used by the ADC, which in some embodiments may be a delta-sigma ADC, in performing the conversions. The cargo basket is connected to the helicopter by first connecting the articulating connector then pivoting and rotating the cargo basket using the articulating connector so as to align and connect the remaining connections. The inside of each first heat exchanger tubes forms a first-fluid passage for carrying a reformed gas.