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| The original question was about spraying, plowing, and conditioned to the use of an iPhone app. A Dual or Garmin GLO GPS will give you in this scenario 10 to 30 inches pass to pass depending on the work condition.
Rock marking is a different thing. When you say "come back later", how much later? Time is the #1 enemy of GPS accuracy. Mentioned devices will give you 40 or 50 ft accuracy in a 24 hour period. So, definetely no good for the job. Cheers! | |
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I-Phone App For Tractor GPS (Any Worth Using?)
