"I should also mention that the caveat to ambiguity resolution is that:

The receiver needs to resolve the ambiguities for each satellite
If the receiver looses lock on a satellite, the ambiguity terms for that satelite has to be…"

"Depending on how PPP is implemented, you might be able to get decimeter level accuracy with PPP for kinematic application. It all depends on the secret sauce used for carrier phase ambiguity resolution.
 

For the uninitiated, PPP is a means to get…"

"Not saying that $60k is throw away cash by any means but compared to a real helicopter, it is quite affordable. $400-600/hr is actually quite cheap for helicopter time. I've got well over 50hrs riding on a bunch of different civilian choppers and…"

"The 'intrinsicly safe' certification would cost a bundle."

"It might be possible if it's powered by fuelcells."