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.
Dean Stockwell guest stars as Gunnar Malstrom, one of the leaders of Pendulum, a secret terrorist organization with a plan involving a major attack on the government that the Impossible Missions Force is assigned to uncover in The Pendulum episode on Paramount Television's Mission: Impossible..