I have bought 4 RF sensors from [Robokits][1]. I want to locate one of them with the help other three sensors by the means of triangulation. My project requires this localisation under distance of 2 meters. So, how to reduce the range of these sensors to 2m ? I'm using arduino, Raspberry pi as processors for the project. Any Documentation/reference links would also be welcome. I have worked on zigbees before, this is the first time with RF.


  [1]: https://robokits.co.in/wireless-solutions/wireless-automation/wireless-rf-serial-link-433mhz-20dbm-2km-range