I've called in a few and had a buddy call in a few while I was with him. Badgers are not big distance travelers so they are where they are and thats the only difficult part of calling them. That doesn't mean that they won't move for some distance, but not like a coyote or bobcat will. About any distress sound will attract them. The badgers that I've shot and seen shot were taken from a ladder which brings up something. Badgers live life pretty close to the ground, I think they look for all the world like a rug being dragged around. If it were me I'd find a way to elevate myself so I could look down into what ever cover your area provides.
So, use any call you like, call in badger country and choose a stand that affords a good view of the ground.