Signal Quality. Spektrum telemetry modules keep tabs on the quality of the signal coming to the receiver and send this information back to the transmitter where it is represented on the LCD screen using a familiar signal bar scale.
A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.
Pendulum clock - Mechanism. 1  The mechanism which runs a mechanical clock is called the movement. 2  A power source; either a weight on a cord or chain that turns a pulley or sprocket, or a mainspring. 3  A gear train (wheel train) that steps up the speed of the power so that the pendulum can use it.