I have a few GPS questions if anyone can help me. (Zeke- if you're still out there you sound like you know what you're talking about!) Anyone else is welcome, of course!
1. The yanks "switched off " SA in 2000, can they "switch it back on"? i.e is it really still a GPS error?
2. If P code is available only to the us military, why is it transmitted on L1 along with the C/A code that we all have access to?
3. What makes L2 different (other than the frequency it's transmitted on) if the P code is transmitted on L1 as well?
4. May I have a laymans definition of "ephemeris"?
Thanks
Wow- I just looked at the date when I read my reply- how much of a nerd am I- posting on pprune questions about GPS on Christmas Day
The things pilots do for that dream job!
Merry Christmas everybody.