ARLA/CLUSTER: Será que as "Estações de Números" transmitem mensagens a espiões.?

[João Costa > CT1FBF]

Do 'Numbers Stations' really instruct spies?

Radio World reports unidentified radio broadcasts have been
transmitting coded messages, using numbers, for years

“6-7-9-2-6. 5-6-9-9-0.” Tune across the shortwave bands (above AM/MW),
and chances are you will come across a “numbers station.” There’s no
programming to speak of; just a mechanical-sounding voice (male or
female) methodically announcing seemingly random groups of single
digit numbers for minutes on end.

Congratulations! You are now officially a spy-catcher, to the extent
that you may have tuned into a spy agency’s “numbers station”
transmitting one-way instructions to their minions worldwide.

Numbers stations are unidentified radio broadcasts that consist
usually of a mechanical voice “reading out strings of seemingly random
numbers,” explained Lewis Bush, author of “Shadows of the State” a new
history of numbers stations and the spies who run them. “These are
sometimes accompanied by music, tones or other sound effects.” He
said. “There are also related stations broadcasting in Morse Code and
digital modes.”

Read the full story at
http://www.radioworld.com/news-and-business/0002/do-shortwave-numbers-stations-really-instruct-spies/341024