•Flarm
contains a GPS receiver which locates the aircraft’s position
•Flarm also
contains a transmitter/receiver which transmits the aircraft’s gps position to other flarms in range and receives the other
aircraft’s gps
positions
•The rest is
computation – providing displays and/or audible warnings of the proximity of
other aircraft
relative to you
•It is
important to realise that it is all based on gps i.e. speeds, tracks etc are relative to the
ground