Teen Age Message

70-m dish P-2500 (Evpatoria Planetary Radar) in Yevpatoria.

The Teen Age Message (TAM) was a METI message, transmitted from the Yevpatoria Planetary Radar to 6 nearby Sun-like stars during August–September 2001. Unlike the previous digital-only Messages, Arecibo-1974 and Cosmic Call 1, the TAM has complex, three-section structure with different forms of information. Such structure was suggested by Alexander L. Zaitsev.

• Section 1 represents coherent sounding radio signal with slow Doppler wavelength tuning to imitate transmission from Sun's center. This signal was transmitted in order to help extraterrestrials detect the TAM and diagnose the radio propagation effect of interstellar medium.
• Section 2 is analog information and represents musical melodies, performed on the Theremin. This electric musical instrument produces quasi-monochromatic signal, which is easily detectable across interstellar distances. There were seven musical compositions in the 1st Theremin Concert for Aliens.
• Section 3 represents a well-known Arecibo-like binary digital information: Logotype of TAM, bilingual Russian and English Greeting to Aliens and Image Glossary. This section and the Concert program were composed by teens from different sites of Russia.

The project is so named because of the age of most of the participants.

Stars to which the message was sent are the following:

Name	HD designation	Constellation	Date sent	Arrival date
	197076	Delphinus	August 29 , 2001	February 2070
47 UMa	95128	Ursa Major	September 3 , 2001	July 2047
37 Gem	50692	Gemini	September 3 , 2001	December 2057
	126053	Virgo	September 3 , 2001	January 2059
	76151	Hydra	September 4 , 2001	May 2057
	193664	Draco	September 4 , 2001	January 2059

See also

• Communication with Extraterrestrial Intelligence

External links

• The TAM Schedule, Concert program and complete listing of the images and target stars
• The Teen-Age Message
• A Teen-Age Message to the Stars
• Sending and Searching for Interstellar Messages
• The First Musical Interstellar Radio Message
• details of the controversy over Zaitsev's Messages