150 and sends data for each receiver to the gbas augmentation function 52 the gbas receiver message receiver 66 may contain hardware elements and or software elements for performing this translation and storage operation this message receiver function produces the laas type 48 and type 49 information and sends that information to the laas message formatter 62 for creation of these messages in a preferred embodiment the laas message formatter 62 utilizes the gbas augmentation function 52 data the gbas integrity function 68 data and gbas receiver message receiver to format laas type 1 2 4 48 49 and 50 messages the laas message formatter 62 then can output these formatted messages 170 to the communication network 250 using a processor network output 60 and a communication path 244 the laas message formatter 62 can output the formatted gbas data 152 to a user 38 using a user output 59 to a local area transmitter 36 and a communication path 244 to the user 38 the inventive gbas has two primary functions 1 output the messages consistent with the above described laas protocol and 2 utilize the received inputs to enhance the current computations generation of the actual laas formatted type 1 2 and 4 messages for the laas signal in space is well known and defined in the link protocol according to do 256a and do 245 the additional type 48 and type 49 messages are generated from the raw augmentation observable and configuration data 150 determined at each receiver 32 in the gbas the type 50 message contains the result.