A method and apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system are provided. Each node in such a MANET has a dynamic reputation level known to all other nodes. Should either the combination be forgotten or the combination be changed by another person, a turning of the shaft about 90 degrees by inserting a key into the keyhole will turn the projection and the engaged engagement member for releasing the dog. The rectifying circuit is configured to bypass a starter route and also direct the power signal to the driving circuit through a power input route. A noise power measurer connected to the correlator, measures the noise power from the output of the correlator.