Hi, I believe that my GPS is WAAS/EGNOS capable. Does the SiRF chip need initialization to use this? I am asking because I receive the following message: $GPGGA,<time>,<Latitude>,N,<Longitude>,W,1,08,0.9,369.4,M,-35.0,M,,0000*6B This give me a position fix indication of 1 which is: GPS SPS Mode, fix valid I had hoped/expected to see fix indication of 2 which is: Differential GPS, SPS Mode, fix valid Am I misunderstanding that WAAS is "Differential"? Are there more setup strings the chip needs to boost accuracy? Thanks -Tom