At one point in the setup process, the converter will ask you if you want to perform a channel scan. Say yes, and do whatever it is you like doing while you wait to see if something works. It could take a few minutes, but when it is done you will know whether everything is working or if there is more to do to set up the converter box. If you got good reception from channels 2 to 59 with analog broadcasts, you will likely be able to receive digital channels without a problem.
If you get all the channels you are expecting, congratulations, you are watching Digital TV! Just remember to run another scan after the 12th, and every now and then afterwards to make sure you are getting any new channels that come along. If you don’t get as many channels as you were expecting, or any channels at all, make sure your cables are all set up correctly and try again. Also, if the weather is particularly bad, it can interfere with digital broadcasts. If there is a storm that would usually knock out your analog TV signals, the digital probably will not work either. Let the storm clear and try again.
If you still aren’t getting any or enough channels you probably just need to adjust your antenna, but there is a small chance you will need to spend money on a new one.