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Working RTK Base Station for less than $1,000
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Phainein7
Posted 12/15/2024 11:59 (#11010578 - in reply to #10764528)
Subject: RE: Working RTK Base Station for less than $1,000


Tipton, KS
golfnut - 6/5/2024 13:48

realized I could also get the exact coordinates of my antenna by using another NTRIP RTK service if I had one available.  Fortunately, I used one for one of my tractors so I configured my setup as a rover and used that service to get an RTK fix.  I recorded the coordinates and then entered them as fixed location.  My initial testing appears that if I am not exactly perfect I'm within 1/2".



Due to earth's movement (aka tectonic plates), a farmer's base coordinates should be refreshed annually or more when sowing/etc (when repeatability is wanted). My original coordinates were based on NAD_83(2011)(EPOCH:2010.0000), but these will have to be updated by next year to NAD_83(2011)(EPOCH:2025.330) [1st May, 2025). Which was done here: https://www.ngs.noaa.gov/cgi-bin/HTDP/htdp.prl?f1=3&f2=1

My base's coordinates changed this much from 2010 to May 2025:
Latitude - 4.3" [11cm]
Longitude - 15.35" [39cm]
A subscription service should be updating coordinates daily. Septentrio: Mosaic-X5: 4.14.4 has a way to do it like subscription providers do, but I have not been down this rabbit hole, which requires inputting movement info.




(Screenshot 2024-12-15 113625 (full).jpg)



(Screenshot 2024-12-15 114738 (full).jpg)



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