x8200 radio modem x8200 radio modems can achieve a range of 1 to 3km through buildings and 20km in free space. in addition, the radio modem rf power can be varied from 5mw to 500mw. serial data can be transmitted by x8200......x8200 radio modem x8200 radio modems can achieve a range of 1 to 3km through buildings and 20km in free space. in addition, the radio modem rf power can be varied from 5mw to 500mw. serial data can be transmitted by x8200 with baud rates from 1.2k to 115.2k over distances of 10km to 20km line of sight and 1km to 3km when located inside buildings. only three connections are required from the to the host for basic use td, rd & 0v. in addition the x8200 can be supplied with an ethernet interface if required. the x8200 can operate on both licence exempt and licensed bands