1.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Array2k: Multiple Dishes, Multiple Modes by H. Paul Shuch, Ph.D. Executive Director The SETI League, Inc.

2.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Project Argus All-Sky SurveyAll-Sky Survey 5000 stations5000 stations 4 pi steradians4 pi steradians TVRO dishesTVRO dishes stand-alonestand-alone modest sensitivitymodest sensitivity 10^-23 W/m^210^-23 W/m^2

3.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Drift-Scan vs. Steerable

4.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Array Cost for a Given Sensitivity Mechanical Electronics Total

5.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org RPA

6.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Mills Cross

7.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Multiple Simultaneous Patterns

8.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Feedhorn and LNA

9.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Feed Assembly

10.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Analog Splitter/Combiners

11.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Quadrature Couplers

12.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Wide-Beamwidth Pattern ‘A’

13.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Linear Couplers

14.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Narrow Patterns ‘B’ ‘C’ and ‘D’

15.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Digital Correlator

16.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Steerable Pattern ‘E’

17.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Future Site of Array2k (ostriches not included)

18.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Preliminary Budget (per antenna) Electronics ~ Mechanical Electronics ~ Mechanical Preamps $ 600Dishes$1800 Couplers $1400Mounts$ 500 Cabling $ 500Feedhorns$ 500 Receivers$1500Rotors$1000 Computers$1000Installation$1200 Total$5000=Total$5000

19.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Surprise Donation: 47 Prodelin Offset-fed 1.8 metre solid dishes w/ Az/El mounts

20.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org Corrugated Feedhorns

21.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org First Light: $160,000 + 12 Months

22.  © 2001 The SETI League, Inc. Background © Aurore Simonnet All Rights Reserved www.setileague.org How To Reach Us www.setileague.org info@setileague.org 1 (800) TAU-SETI