As quoted from forex.eazel
The SHI Channel indicator and as the all of the channel
indicator uses the highest high and lowest low of the price to determine the
upper and lower bands of the channel.
In the SHI Channel The channel is
calculated according to the given period of calculation and the time frame of
the used chart, and the channel is self-adjusted (Like the Bollinger
Bands).
As you see in figure 1 there are two thick lines that indicates the
upper and lower channel and a dashed center line.
