I want to use a 1310 in access-point mode to give access for users in an environment without barrier. What is the maximum distance can i have whith external antenna air-ant24120, more 200 M? With two external antennas can i have more?
the following Cisco document lists the facts and figures for the antennae. Although it does depend on the power output you are allowed to use.
The other point to bear in mind is that although you can get a range of several kilometres with the right antenna, if you're using the 1310 as an AP, the client must have the range to reach back to the 1310 and the max range for most clients is about 200M in the open air.