Cosmic Call

[1][2] The project was funded by Team Encounter,[3] a Texas-based startup, which went out of business in 2004.

[4] Both transmissions were at ~150 kW, 5.01 GHz (FSK +/-24 kHz).

The Scientific Part (DDM, BM, AM, and ESM) was sent three times (at 100 bit/s),[6] and the Public Part (PP) was sent once (at 2000 bit/s),[6] according to the following arrangement: where DDM is the Dutil-Dumas Message,[7][8] created by Canadian scientists Yvan Dutil and Stéphane Dumas, BM is the Braastad Message, AM is the Arecibo Message, and ESM is the Encounter 2001 Staff Message.

[6] Each Cosmic Call 2 session in 2003 had the following structure: where DDM2 is modernized DDM (aka Interstellar Rosetta Stone, ISR), BIG is Bilingual Image Glossary.

[5] The DDM incorrectly states the neutron mass as 1.67392... instead of the known value 1.67492...