i'm working on transmitting data using wireless transmission and i want my signal to travel a distance of 1 km..... can someone suggest me some modulation schemes and other things related to that..... especially i need the power and frequency i would be needing....
Anand,
Please provide greater details. You need to explain the requirement and the environment in which your devices will work. Otherwise, generic replies, based on the info provided by you, will not be of any use to you.