Why can't I get signals on channels 2 and 7 when the others are fine?

[Christine_9]

I just started having problems getting channels 2 and 7 with my converter box. The other stations are okay. One night I did not get any signal on them. Last night 7 was working but tonight it went from having a very chopped up picture to having no signal again. It is very upsetting because it is the channel I watch most. I am in Chicago, IL.]

 

[americanaudiophile]

You can try changing the position and or orientation of your antenna. The converter box may have a signal strength indicator so move the antenna to see if you can get more signal on 7. A better antenna may help. If yours is not amplified then one that is might work better.