Steve, you have to play the wind with the dogs or you lose. Do you have fields with winrows or are you hunting tote-roads in the woods? Got any clearcuts near you?
If you set up with a big field or body of water at your back and the wind close to in your face, you will better your odds. Make the fox or coyote expose himself through thin woods, an open field or a tote road. I like to call fox from close to a road at marshes. Sometimes a yote will hunt these areas too. Just put the road at your back and the wind in your face and call. Don't call too loud unless you can see a quarter mile or more. Rodent sqeaks work well once you see a fox or yote heading in.
I like to hang a tanned muskrat skin so the wind moves it some with my electronic call (speaker) under it. Gives themsomething else to focus on besides you.
Call off & on for 15 minutes then sit still for 10 or 15 minutes. Bobcats are slow to respond and you may call in ****, fisher or anything else so sit tight and see hat happens. And don't use the same call/cadence more than once or twice in a spot.