Last summer I wrote an article about plans from LightSquared to roll out broadband LTE services that would interfere with the GPS signals much of our Ag equipment relies on. This article on GigaOM, In a Suspect Move, LightSquared Calls for GPS Standards, goes into some more detail on this potential problem.
I'll reiterate what I said several months ago: it's important that our GPS signals remain solvent for guidance, mapping, and harvest operations, not to mention navigation systems, but the potential benefit from widespread 4G LTE services throughout rural America is staggering as well. There are devices in development, and in limited release, that will allow the transfer of application maps, field files, harvest files, etc, directly from the cab of the tractor through the controller and back to the office. This will require broadband speeds in the field, thus the conundrum.
Stay tuned, I'll try to keep you updated as this progresses.