high altitude balloon ddf team leader: josh beighle group members: adam chen, aaron seyfried faculty...
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HIGH ALTITUDE BALLOON DDF
Team Leader: Josh Beighle
Group Members: Adam Chen, Aaron Seyfried
Faculty Advisors: Dr. John Wu, Dr. Joseph Slater
Industry Advisors: Bruce Rahn, Nicolas Baine
April 20, 2012
OverviewTest Experiment DesignTesting Measurement DataDemonstrationKit IssuesSolutions
Experiment Design
• Red dot represents handheld CW beacon
• Person in car drives in oval formation around operator
• Corresponding LEDs light up in the direction the signal is coming from accordingly
• System will be utilized in foxhunting upon completion
0º
270º 90º
180º
Experiment Design
Experiment Design
Experiment Design
Testing Measurement Data
• Measurement data for the small scale testing will be mostly qualitative data
• Testing will focus on relative accuracy and consistency of the system
• This data will reflect the usability of our system at the CW beacon frequency (146.565 MHz, 2-meter band) and further calibration techniques
Testing Measurement DataTime (minutes) Degrees Approximated Distance Approximated Location
0102030405060708090
100Note: One data sheet for each kit. Time and location will be determined from measurements from both kits
Demonstration• “Beeline Big Beacon” • Programmable 440 MHz beacon• Adjustable frequency for package dissemination• Morse Code reads: W1WSU Command
Issues
•First Kit Issues• Finding the CW Signal• Audio signal sporadic
•Second Kit• Assembled, not functional• Pending functionality of first kit• Once problems are diagnosed, second kit will become
functional quickly
Solutions
SolutionsFunctional rigging persistsUtilize instructional videos
Documentation provided from Ramsey Electronics is vague
Further testing will continue with CW beacon source
Yagi Antennas• Reconfigured RG58 connection point
SponsorsThe Ohio Space Grant Consortium (OSGC)Wright State University Curriculum Development GrantNational Science Foundation (NSF)
SummaryTest Experiment DesignTesting Measurement DataIssuesSolutions
Questions
• Josh Beighle: [email protected]• Adam Chen: [email protected]• Aaron Seyfried: [email protected]