you should be able to make a 2 mile shot using 900 mhz spread spctrum assuming you arent trying to shoot thru alot of trees or a pine forest in south louisiana, assuming by your location thats where you are. You may need to get some height on the antennas but I would imagine 30' push up poles would be sufficient on each end.
it really just depends on your terrain.
it really just depends on your terrain.