From 1987 to 1990, David Diez participated in the planning, coordination, management and implementation of the European Space Agency (ESA) satellite communications project PROSAT/PRODAT, in which the Spanish DGAC, the British CAA and EUROCONTROL were involved.
Click to see supporting DGAC CERTIFICATE
The PROSAT/PRODAT was mainly a pioneer experimental program on Automatic Dependent Surveillance (ADS) and Controller Pilot Data Link Communications (CPDLC), using INMARSAT satellites.
During the trials the Spanish DGAC succeeded in being first in controlling a flight via satellite data link.
Click below to see some magazine articles giving details on this subject:
ICAO Bulletin FEBRUARY 1989
PRODAT/PROSAT data links successful in controlling jet flight
Boletín OACI FEBRERO 1989
Los enlaces de datos PRODAT/PROSAT logran controlar el vuelo de un reactor
Bulletin OACI FEVRIER 1989
Premier vol controlé via une liaison de données par satellite PRODAT/PROSAT
Revista de AERONAUTICA Y ASTRONAUTICA Nº 615 AUGUST / SEPTEMBER 1992
ATC Magazine Nº 6 OCTOBER / DECEMBER 1995