Special Features:

Critical item for safety and survival of deep submergence research and rescue vehicles as differentiated by special test features

Properties:

An electronic device whose input signals controls a local source of power and delivers an output signal of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It is tuned to a single fixed frequency which is the resultant of heterodyne action between a local oscillator frequency and a signal frequency introduced from an external source.