Monroe is on the Delaware River. If you're down in the valley at river level, you shouldn't be able to get much of anything at all, according to TVFool. If you're up in the hills you might be able to get something. When you use TVFool, use the Maps option, and adjust your location if necessary by dragging the marker on the map. In hilly terrain, small differences in location can make big differences in reception.
[added] Oh wait a minute... that map shows Monroe on the west bank of the Delaware. That's in Pennsylvania!
I'd better add the ZIP code... aha, now I'm near I-95 between Cranbury and Englishtown. You'd still better zoom in on your address, but it looks like you should be able to pick up Fox 29.1 with a halfway-decent outdoor antenna. It's weaker than the other networks but definitely not out of reach. Maybe you just need to replace your antenna cable and/or re-do the connections. Or the antenna itself may not be working as well as it should, if it's really old. Connections can become corroded, or elements that should be separated might have come into contact.
