== GrafNav GNSS Processing for IPAS Pro ==

Similar to Applanix GNSS processing. (See that wiki page if these notes dont make sense :))

 1. If required convert the Plane and basestation GPS RINEX files to GPB files. (file>convert>Raw GPS to GPB)
 1. Add Remote file (file>add remote). This is the plane GPB file (probably in the extract firectory)
 1. Add Master file. (file > add master). This is the basestation data.
 1. Load airborne settings (Settings > Load settings from > airborne)
 1. Process differential GNSS.  
   1. Change settings/options as required to get a good result (green line). iterate until best solution obtained.
   1. Check combined seperation graph.  We want this small.
   1. Check number of satellites.  The more the better (Need at least 4 to even get a solution, more for an adequate one)
   1. When happy, click Export -> Export Wizard.  Select IPAS from profile.  All other default settings should be ok, but check to see if sensible.
 1. Click finish to output the results to a suitable format for IPAS Pro.
 1. Save project and exit.