Powerful frequencies : radio state power and the cold war in Angola 1931 2002 Sonic Colony: Whiteness Fast Cars and Modernity 1931 74 Guerrilla Broadcasters and the Unnerved Colonial State in Angola 1961 74 Electronic Warfare: Radio and Counterinsurgency 1961 74 Nationalizing Radio: Socialism and Sound at Radio Nacional de Angola 1974 92 Angola: The Firm Trench of the Revolution in Africa! : Our Anti Imperialism Your Cold War 1975 92 Radio Vorgan: A Rebel Voice from Jamba 1985 97 Epilogue. Jamming Radio technology and broadcasting played a central role in the formation of colonial Portuguese Southern Africa and the postcolonial nation state Angola. Moorman details how settlers the colonial state African nationalists and the postcolonial state all used radio to project power while the latter employed it to challenge empire