How do I know which baseband version I should be on?

I'm running Resurrection Remix M 5.7.0 on my 900T. How do I know if I'm using the correct Baseband version? I am on FOF6. I know this is a newbie question but for some reason I can't find anything on Google or XDA that gives me a clear explanation and I don't want to hard brick my phone.

Thanks in advance.