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.
Pendulums are often used as tools for spiritual healing and inner growth. Pendulums are objects attached at the end of a string or metal chain. When suspended from a stationary position the pendulum will swing back and forth or in a circular motion. Pendulums are made from a variety of materials including crystals, wood, glass, and metals. There is a general consensus within the healing community that using a wooden pendulum on a thread is the preferred option for receiving the most clarity.