title_body: EU Citizens: range settings of DJI Digital FPV system (FCC vs CE)?
upvoted_answer: The difference is due to regulation - in the EU, the permitted radio power output is lower than that allowed under the FCC regulations, which results in reduced range.
  Without a licence from your countries telecoms regulator, it would be illegal to operate the FCC equipment in Europe.
  It is likely to be a software setting, but there might be hardware differences if the costs make business sense (possibly cheaper hardware Vs. different production process.)