It may work,but of the many trail cam pictures that I have of coyotes,foxes,and bobcats,coons and possums 99% didn't come to the dead deer carcass until after dark.And I was never able to call one in during the daylight to the baitsite.I did however call in one of the coyotes a month after the bait was entirely gone they do check out these places again and again after every thing is gone,I know this because I left the camera on the site after the bait was gone including the hide and bones.I did one year watch a young coyote playing with a bone one morning during deer season that was at a sight where we had drug off a dead calf.I could have called that one into range maybe if he had wanted to come.Try your idea there are callers that have the range you need my foxpro has a 700yard range and I'm sure maniska has a good range but youre going to have to get in your wallet for that kind of range.good luck and keep us posted on how it goes.