Trimble500 easy steer on ecnos problem.

[tw15]

Got a problem put A point in and B point in at other end of field, the field is straight as you can get finish the headland back to A point then drive up to other end but it is about 1.46 m out when checked with tape measure . Last year in the same field I thought I would borrow a friends case running rtk and it did the same thing . WTF is going on most other fields ok just a couple of and both last year and this year have done the same . Checked and checked settings . Not near trees so that rules that out .
I did some fert on rtk drilled s barley beforehand and the driller said set at 24.9 meters and it worked perfect . Was on his pre em marks all the way across the rolling fields
It seems like I have 3 jinxed fields the same ones rtk last year did strange things and now this year on our own egnos .
Help needed as it is driving me crazy .

Running in auto select gps as on advice of local gps man at the moment , last year I was on 136 had the update done on gps .

 

[Bruce_D]

Is you jinxed field flat or on a hill? Elevation and roll changes can affect the accuracy of the GPS positions. Especially as most GPS systems are mounted 2.5m up in the air, on the roof of the cab. This means that even a small roll of 10 degrees can put the wheels out 0.5m. Check your GPS position settings in x,y and z.

 

[tw15]

Field is flat other fields all ok it seems I'm jinxed it seems to give me grief in just 3 fields going to do a field of ww the other side of the hedge with a second application of n so I will see if the first dose has any misses in it by the looks it seems spot on .

 

[Bruce_D]

Mmmm, is there any source of RF or mag interference near by that one field; power lines, radio masts, high iron levels in the soil? These can affect the magnetometer.
If the issue is only in that field that it sound environmental, rather than software or hardware error.