The John Deere RTK Radio 900 uses a frequency band that is free and open to the public.
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Very useful system but overall price is HIGH.
Best feature is accuracy which equals to cost-effective which further equals to profitable. Value for money in the long run is advantageous!
Getting more use
Good system, worth the price but expensive.
Test new products more before releasing to public
Cost effective for variable rate planting and fertilizier