green illuminated exit sign in a hospital together with the fire alarm system
warehouse shelfs full with books ready to be shipped
grid semi- parabolic antenna for 2.4 Ghz WIFI for outdoors use
bureaucracy metal shelves full with carton boxes with papers
empty signboard hanging on modern white walls
huge satellite dish antenna on the roof of a building
Inside view of a telkoms antenna pattern
Aviation radar in Africa for military use against the blue sky
