Relative Volatility Index (RVI)

Anyone know about this indicator? Or where a copy of it may be found?

Google is your friend... for instance:

http://trader-online.pl/MSZ/e-w-Rela...Index_RVI.html

gives the exact formulas, a chart example and a nice discussion, ranging from the RVI origins to logic to usage.

A "copy"... for which platform? I see that it's available for MT4 and others.

The Relative Volatility Index (RVI) by Donald Dorsey is a confirming indicator that measures the direction of volatility. The RVI is similiar to the Relative Strength Index (RSI) except instead of daily price change standard deviation is used.

Is there a way to learn technical analysis in forex by self? Can someone recommend where to start from and with what?