About

Gender

Male


Location

Menlo Park, CA


About Me:

Software Engineer transitioning to GIS and location services.


Please tell us a bit about your UAV interest

I'd like to build one. I'm currently developing GPS post-processing software.


Hometown:

Menlo Park


Activity Feed

John Morris commented on Mark Harrison's blog post Centimeter-level precision GPS for $900
"Julio,
I've interfaced to the Lassen IQ receiver, but I never figured out how to get carrier phase. There is a "raw data" message 0x5A, but it has only CA-phase and Doppler.  Looking back at my code, I configured the IQ with a "35 11 00 00 01"…"
Aug 13, 2013
John Morris commented on Mark Harrison's blog post Centimeter-level precision GPS for $900
"Concerning the use of DGPS and RTK with drones …
DGPS is submeter only with dual frequency base stations. Single frequency base stations are much less accurate, mainly because they can’t distinguish between atmospheric and multipath errors. Their…"
Aug 13, 2013