The Enhanced Signal To Noise Ratio was created by John Ehlers (Rocket Science For Traders pgs 87-88) and this is my favorite Ehlers Signal To Noise Ratio indicator. Scalpers like to use this indicator because when it is above the dotted line then the stock is trending and not trading sideways. Buy when the indicator line is green and sell when it is red.
Let me know when you want to see me publish other indicators or if you want something custom done!