Documents
The FX.25 extension to AX.25 implements a Forward Error Correction (FEC) ?wrapper? around a standard AX.25 packet and is designed to supplement the existing AX.25 infrastructure without displacing it.
CanSat Lesson Plan for Teachers
Li-Ion Destructive Battery Test Results (pdf file 382k)
CubeSat Vibration Test Results
CubeSat Vacuum Chamber Test Plot - High Temperature (PDF file 612k)
This pdf shows the solar panel temperatures when the chamber was set to 30C then to 80C. The base plate temperature is measured in the chiller bath so there will be a difference between the chiller bath and the base plate in the chamber. You can see that the panels aren't exactly at the same temperatures and some lag other panels when there is a temp change.
CubeSat Vacuum Chamber Test Plot - Low Temperature (PDF file 612k)
Here are the plots for the low temperature. The chiller was set to -20C which is the limit for the fluid. I did push it to -25 where you see the dip. Unfortunately, the piping started icing over so I had to stop it. Some of the plumbing went over open vents of some electronics.
Four Wheel Drive Compression Test (Photos)
The GVWR for a '94 Wrangler is 4300 lbs. That has about 800 lbs of passengers included, so call the empty curb weight 3500 lbs. Weight distro is about 60/40, so the front axle load is approximately 2100 lbs. Looks like we put about 1100 lbs on the CubeSat.