These are Greg Kendall's two tracks, one from the Flymaster
Tracker and one from his 5030. There are consistent with all the other altitude
graphs that I have presented in this issue, where the Flymaster track shows a
higher altitude on the SeeYou "altitude" chart, which is supposed to display
barometric altitude.

The red line is the Flymaster Tracker. The SeeYou "GPS altitude" graph shows the
GPS altitudes to be the same for both instruments.