The NB Channel Forex Indicator is a popular and free Metatrader 4 (MT4) indicator that is useful for any type of Forex trader. It is a trend-following indicator that is used to determine the direction of the trend and can be used to generate buy and sell signals. The NB Channel indicator is a popular and useful tool for Forex traders as it can help to identify potential trading opportunities and keep traders on the right side of the trend.