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| They work OK for FLAT ground. The antenna has no roll bias, so on a slope of ANY significant amount the drift, waas accuracy, and slope will combine to put you WAY OFF.
Don't buy GPS components with your wallet. Buy them with your head. You can't save enough money to make poor products useful. Buy something you can upgrade later and start with something that has a gyro included (to take roll into account). | |
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Tee jet Centerline guidance?
