Break up of picture

Since my son installed my converter box, I get great pictures and more channels but the picture breaks up pretty regularly so much so I give up watching TV.
How do I figure out what to do? I have a new antenna that should work,at least my son says so.


Hi, there! Breakups usually happen because the signal is too weak, the signal is being reflected so much that the tuner regularly gets "confused," or an antenna amplifier is being used when it's not suitable for your reception situation. Could you tell us what make and model of the antenna is, where it's located, the make/model of your converter box, and your ZIP code? (With the ZIP, we can get a better idea of signal conditions in your general area.) Thanks.