1. STATUS of 6m ANTENNA BASE Matt Fleming 8/24/04 Note 6m = BIMA

2. BASE DESIGN 1 steel box beam structure 106 x 106 x 48” ( fits truck ) 4 bolt on legs 48” long ( field assembly ) 4 lifting & locate points for transporter 4 jacks ( maybe 3 ) 3 point support of 6m antenna pedestal 1 doorway 24 x 39” 2 windows for light & air 1 trap door in floor 24 x 36” Enclosed space for making fiber connections. Trap door in floor allows full access to vault below.

3. JACK CONCEPT 10m BASE

4. JACK CONCEPT 6m BASE J25 Jacks 36 x $2,800 = $100,800 jacks 4 x $500 = hand gear crank Custom Jack 36 x $750 = $27,000 jacks 4 x $3,000 = $9,000 motors

5. PREFERED CONCEPT Use design shown in –D- Use portable air bag or portable hydraulic if needed Eventually develop 3 drive units for more convenience.

6. TASKS REMAINING FOR BASE Conceptual Design, complete. Done Alternate Jack design, complete.Sept. 3 Detailed design, complete.Sept. 9 Finite Element Analysis, begin.Sept. 18 Finished shop drawings, complete.Oct. 18 Request for Quote sent, UCB Purchasing.Nov. 12 Contract prepared & awarded, UCB Purch.Dec. 13 Fabrication & delivery, complete.Feb. 25