So are you saying if we are not fairly close to a tower that 3g might be a step backwards in terms of us be able to use cell cams?
But, it does appear that AT&T has a mad dash going to increase numbers of towers. They are spending most of their money in urban areas though. After all, that's where they have most customers. I think they might be leaving the bulk of coverage in rural areas to the smaller providers. Just a gut feel on my part.
I have made a 1900mhz yagi but haven't tested it yet. It's only about 8" long. I have a quad band omni-directional antenna at my RV and I do get 1900mhz signals with it, but only about 10% of the time. I am 5 miles from the tower I'm using.