Another twist to the above excellent advice and what we do at times is to combine the two. I don't have a big calling unit, just a cheap little boom box. Set the player off to the side a bit and start the tape and medium to soft volume. QUICKLY get back into position and get ready. If nothing shows after a bit, we cut loose with a series on the hand call as an attention getter. If you can get a coyote to hear your mouth call and start coming in, he will then next hear your tape player and should not be looking directly at your position. It doesn't always work, but is way cool when it does. Good luck, Bill