www.sierratango.org
Sierra Tango International Dx Group
SIERRA TANGO is a no-profit Cultural Association that has as finality the use of Radio for:
a) The Self Education
the telecommunication's study and technical experimentation.
the study of short radio waves propagation.
b) The Social and Humanitarian objects
the solidarity, the aid and the charity toward the needy people.
the demolition of the racial, religious and political barriers.
suggest and support all social and humanitarian initiatives
Dx On Air