RF communication between two distant microcontrollers

[sundar_ka]

I have to create a RF communication between two distant microcontrollers, i.e upto 700 meters. I am aware of the microcontrollers but i want to know some details about the RF communications IC's that can be used to achieve the range mentioned above. At the same time i would like have some useful material about RF communication for long distances.

 

[blueroomelectronics]

XBee Pro and please don't crosspost.

 

[sundar_ka]

to microcontrollers data are getting transmitted while wired. now am tring to transmit through rf fsk tx 01 inone and rx01 in other to receive. but nothing is happening. when check the input to tx01 through oscilloscope 0&1 is shown, but nothing is happening in the receiver side... how to check it