Erta Ale is a remote and rarely visited volcano that is known currently to have an active lava lake in its summit crater. Erta Ale has undergone seven eruption events in the past 125 years.
Re: What are the differences between Signal ground, Chasis ground and Earth?? Signal Ground is a reference point from which that signal is measured, due to the inevitable voltage drops when current flows within a circuit, some 'ground' points will be slightly different to others. There may be several signal grounds in a circuit.
Transaction Signals. It has become standard to plot a separate moving average alongside the MACD, which is used to create a clear signal of shifting momentum. A signal line, also known as the trigger line, is created by taking a nine-period moving average of the MACD. This is found plotted alongside the indicator on the chart.