UAT + MFD UAT + MFD Aircraft “See” each other AWOS Text weather radar weather VHF Wind barometer temp/DP etc. Visibility Ceiling Weather data A/C position Figure 11-138.  ADS-B IN enables weather and traffic information to be sent into the flight deck. In addition to AWOS weather, NWS can  also be transmitted. Figure 11-139.  An ADS-B test unit.  Figure 11-140.  A digital display radio altimeter (top), and the two  antennas and transceiver for a radio/radar altimeter (bottom).  11-63 is set up to depict heavy returns as red, medium return as  yellow and light returns as green on a  display in the flight  deck. Clouds do not create  return. Magenta is reserved to  depict intense or extreme precipitation  or turbulence. Some  aircraft have a dedicated weather radar screen. Most modern  aircraft integrate weather radar display into the navigation  display(s).  Figure 11-142  illustrates  weather radar displays  found on aircraft.