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Discussion Starter · #1 ·
We run a 2003 9750 sts with yield monitoring and mapping. The problem we have is the ground speed reading on the cornerpost does not match the speed reading of the gps receiver. Because of this the acres counter reads high on every field. In the past i just changed the header size from 30 to 27 to offset the acre difference. Now with yield mapping this doesnt work. Is there any way to change what the combine uses for a speed reading or can you calibrate the combine groundspeed?

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