In some of the areas that I call coyotes the coyotes travel around 5 miles or farther. I have found coyote scat full of juniper berries, grapes and carrots 4 to 5 miles away from any junipers, vineyards or carrot fields.
When you call a great coyote calling stand spot there may not be a coyote close by or a coyote in a location that your calling sounds are reaching into. Or the wind or breeze maybe keeping your sound from reaching the coyote.
If you called that very same place 2 or 3 hours later a coyote could have moved into the area or moved up out of a low spot to where it could hear your calling stands. The wind or breeze could have also changed direction a little letting the sound go into a area that it did't reach previously.
Many times I have had coyotes or a single coyote come hard charging towards my e-caller after calling for 20 minutes or more. I am pretty sure that sometimes when this happens the coyotes didn't hear my calling sounds when I fist started the stand. Either the coyotes moved to a spot they could hear the sound or the breeze or wind increased, decreased or changed directions so that the coyotes could hear the sound 10 to 20 minutes after I started playing the sound.
I never have called a spot twice within 2 or 3 hours, but I have called the same stand early in the morning and then again later in the afternoon.
I have quite a few really good coyotes calling stand spots that I have used over the years. If I have not called a coyote in from these stands two days in a row I would still call these stands if I was close to them on the 3rd and 4th days. I have killed lots of coyotes on a stand that I blanked on the first 3 or 4 times I called on that stand.
In the areas I hunt coyotes do not stay in one square mile, they can and do roam around in 9 square miles to at least 25 square miles that I know of.
Just because no coyotes come in doesn't mean that it is a bad location for a stand, it maybe that there was not a coyote there at the time you called at that spot.
When I use to trap coyotes I found places that many coyotes traveled through. It was like it was a spot that many different coyotes had areas or territories that over lapped on this one spot. At these spots I would catch coyotes 3 or 4 times the first week and maybe twice a week for two or three more weeks. Then I could catch singles or pairs of coyotes once a week for another month or more.