I'm new to calling. I've hunted coyotes with my brother and his dogs for the last 12+ yrs. I just bought the foxpro shockwave and it has fox cast on it. When I play one of the preset sequences it plays nonstop at different volumes. I googled coyote calling tips and it said not to over call. It said to call for 1 minute and pause for 2 minutes or so. What advise can you experienced guys give me?