I work for an urban municipality and we are scheduling an event where we would like to setup a cheap, temporary camera network. I need to send the signal from downtown (where all of the cameras are) to one specific building. This building is a minimum of 2250ft away from the most vital camera and if possible I'd like to reach 2500-3000ft. I can most likely position a WiFi device on a large building, so I should be able to get line of sight.
Our municipality currently has microwave linked cameras, but that's far too expensive for this temporary operation. So I was hoping to use some sort of long-range WiFi or whatever the cheapest option is. If necessary, I can setup repeaters along the way and I would use whatever the building had for power. I thought of using high-gain antennas, that would totally be an option.
Does anybody have any thoughts on some example technology I could use to solve this problem? I'm currently thinking of using a mix of repeaters/high gain antenna/wireless cameras, but I'm unsure if that is realistic.