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Number Stations Revealed - Part 5 of 6: How To Operate The Machine With A Tape

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Published on May 6, 2010

Here's the actual machine behind all the various East-German numbers stations.
This is from a recording I made in May, somewhere in Germany.

This video is part of the following playlist on this channel:
http://www.youtube.com/watch?v=Xkc_Ig...

This machine pronounces, in a monotone voice, a string of numbers used by intelligence agencies for one-way shortwave radio communication with their agents in enemy countries.
This machine belongs to a German collector who has a vast collection of various spy-gadgets.
There were many machines of this particular model produced in East-Germany for usage within the DDR itself or other communist bloc nations, like the Soviet Union or Cuba.

As already said in one of the earlier videos that the printed circuit boards only contains the voice samples of the lady pronouncing numbers in either German or Spanish.
THE EEPROM's NEVER CONTAINS THE ACTUAL MESSAGE.
For a (in this case a ready-made) message to be put in the machine a tape was used that not only contained the actual message intended for the agent but also the number of times this message should be repeated by the machine.
This video goes to show how that is done.

The Speech/morse generator can also change the speed by which the pronunciation occurs.
Giving the voice a slightly higher or lower pitch.
A later video in this series will make this apparent.

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