Simmons say Havana has long relied on short wave radio to send encoded messages using a system that converts letters into numbers.

VOA: standard.2009.06.06

Authorities say the couple also used short wave radio to take orders from Havana and to transmit information.

VOA: standard.2009.06.06

The two women are disc jockeys on a top Havana radio station, and this exchange took place during their call-in show on the eve of the pope's arrival.

ECONOMIST: Brother Fidel and the women of Cuba

Joining us by phone from Havana, Cuba is Juan Jacomino, correspondent for Global Radio News, and Juan, thank you very much for being with us today.

NPR: Hurricanes Wreak Havoc In Haiti And Cuba

Mr. JUAN JACONIMO(Correspondent, Global Radio News): My pleasure, really well we're bracing for the storm here in Havana, that's suppose to be hitting us anytime very late tonight or early tomorrow after having caused havoc here in the eastern part of Cuba.

NPR: Hurricanes Wreak Havoc In Haiti And Cuba