Hello!
Kindly get me a sample recording of your sensor data of RF chip. It's better if it's in json or CSV or text file.
I'd like to see what can be done with the data. There can be many ways to locate a RF transmitter but the problem needs to be understood first thoroughly before suggesting any possible solution.
About me:
I work with sensor networks and data analysis in general. This is part of my research work too. I shall use tools like Matlab or Octave mostly, and Python if need arises.
Thank you!