I put batteries in a brand new 75322T clock and then let it sit for a couple days to pick up the signal. It never did. So I took the batteries out and tried again, same thing. I manually set the time, etc and set it aside to see if it would ever pick up a signal. It has not. I have tried several locations, no signal. I have two other clocks of the same model that show they are picking up a signal. What should I try next to get a signal?