A method and system for determining delays between a primary site and a diverse site in a satellite communication system includes uplinking signal from the primary site and the diverse site. In addition, the base station performs polling on a mobile station returned from its power save state is polled with top priority so that transmissionreception of data pertaining to the mobile station is carried out between the mobile station and the base station within a CFP. The compounds are useful in effective treatment of cancers, particularly malignant melanomas and squamous cell carcinomas. The electrical circuit can have an amplifier, a timer, a pulse shaper, a first synchronous rectifier, a first IU converter, a microcontroller, a reference impedance, a second synchronous rectifier and a second IU converter. The main controller is responsive to executable instructions to facilitate actuation of the motor in response to a signal from the maintenance switch when actuated by the auxiliary feed push button. At least a portion of the piston andor cylinder is coated with ceramic.