[aprssig] differential corrections available to public

[Ian]

I've heard that 2D differential fixes can be less accurate than 3D
non-differential fixes.  So if you're someplace where you don't have a good
view of satellite 35 (east coast) or 47 (west coast) due to foliage canopy
or some other multi-path condition then there might be an issue. Also having
WAAS enabled will disable battery-saving algorithms on some GPSs since the
GPS needs to hear from bird 35 or 47 continuously.

Ian N8IK


-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Ken Brown
Sent: Saturday, March 19, 2005 6:50 AM
To: 'TAPR APRS Mailing List'
Subject: RE: [aprssig] differential corrections available to public

I thought it was turned on in the USA, just not fully tested and accepted by
the FAA for IFR approaches?  

-----Original Message-----
on Behalf Of Earl Needham


         I keep wondering why not simply turn WAAS on?  WAAS is available 
on almost all of today's GPSR's.

         7 3
         Earl


Earl Needham, KD5XB, Clovis, New Mexico DM84jk
http://kd5xb-2.no-ip.info



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