My AP1220B with a 15dbi omni is at 160' over flat farmland. I can "see" at least three other similar strength competitors on channels 1, 6 & 11 with NetStumbler.
The best frequency for me appears to be channel 1 because SNR is the least from the other radios.
Sometimes my clients (and repeaters) can hit the AP with better than 50% signal strength at 3-4 miles out.
Most of the time they will not even associate.
Should I mess with RTS? Other settings? What else?
THX