Best Standard Deviation Channel Range

What range would you recommend for a standard deviation channel for day trading? I generally look for reversals at the 2nd SD lines. The channel I've been using is based on the previous 24 hours rolling, but I'm wondering if anyone uses a different time period? Or maybe you have the channel start from the beginning of the previous or current day? Let me know!

 

Look at keltner bands as well. They use atr for the bands.

 

I run VWAP with 2 std dev bands on all four US indexes starting at EU open along with volume profile histograms starting at both the EU and US open.

 

std of price doesn't make sense -- i would use std dev of log returns.

 

do you have a method of telling WHEN these channel parameters need changing?
do you really believe there is a universal parameter for the next 100 years?
if you can't answer these 2 questions,how do you trade actually?

 

I use BBands 9EMA,2std