Channels

There are 2 types of channels in the forex market :1-If you want to create a down channel, it may also be called a descending channel, you can simply draw a line at the same angle as the downtrend and after that move the line to a new place where it can reach the most recent both valley.
For the both channels ,it should be done at the same time to you to create the trend line.It may be a sell signal when the prices hit the up trend line and it can be a buy signal when the prices hits the down trend line