YUSEND Communication System Design Update ENG February 11, 2009

Background Project Overview

Ground Station Progress Update Functionality Received first signals 2m and 70cm bands Motor control Azimuth and elevation pointing

Space Segment Progress Update Hardware Selection Based primarily on flight heritage Handheld transceiver Yaesu VX-3R TNC Paccomm PicoPacket

Space Segment Progress Update On-Board Computer Successfully connected to camera Pictures transferred over wired connection Future work Interface with TNC, Transceiver Motor controls

Space Segment Progress Update Antenna Design Tx, Rx Alternate designs Measuring tape Spring-loaded Telescopic University of Tokyo XI-IV

Weeks Tasks Project Proposal Contract Proposal Ground Station Assembly & testing Basic radio operator's qualification Design Specification review Software development begins 1st design update presentation Antenna design and modeling Preliminary design review Antenna fabrication 2nd design update presentation 1st communication link test Critical Design review Final design report Project Timeline

Budget CashIn Kind ItemCostChange since Sept.ItemCost Antenna assembly and deployment mechanism $ Ground Station$12,000 Yaesu VX-3R $ $39.00 On-board computer $ PicoPacket TNC $ $ Weather balloon$80.00 Training Expenses $0.00-$50.00 Power supply and other test equipment $2,000 Wires and other materials $20.00 Presentation Supplies $ Subtotal$ $89.00Subtotal$14,20 0