For those of us that would llike to learn different modes of operations, check out this website on You Tube, it is run by K7AGE, what a wealth of knowledge...I can't even remember how I found this site...but it is truly worth looking at.... here is the website
http://ca.youtube.com/profile?user=K7AGE I believe you will not be dissapointed...he explains everything...so much to look at