Naval radio station Aguada
Coordinates: 18 ° 23 ′ 55 " N , 67 ° 10 ′ 38" W.
The Aguada naval radio station is a US Navy installation in Puerto Rico .
At three locations near Aguada , connections to submarines are maintained on long wave and with the short wave radio system of the US Air Force ( High Frequency Global Communications System ). At 367 m, the antenna mast is the tallest structure in Puerto Rico.