Thread: The n800: Ultimate Computer for Air Travel
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GeneralAntilles is offline GeneralAntilles
2008-06-17 , 18:38
Posts: 5,478 | Thanked: 5,222 times | Joined on Jan 2006 @ St. Petersburg, FL
#36
Originally Posted by mullf View Post
Not the height. You are actually closer to the satellites up there. But consumer GPS receivers will not give a position if they detect you are going above a certain speed. The idea is to not let them be used as part of a guidance system for some type of missile.
Correct, I'm not sure what the threshold here is, though. I know I've gotten a lock at around 550MPH with my i-Blue 737 more than once, though.

With most consumer GPS units the issue will be one of velocity, not necessarily because of internal locks, but because the receivers have a hard time getting lock at higher speeds.